diff options
Diffstat (limited to 'drivers/mtd')
52 files changed, 181 insertions, 111 deletions
diff --git a/drivers/mtd/chips/cfi_cmdset_0002.c b/drivers/mtd/chips/cfi_cmdset_0002.c index 1f0d83086cb0..870d1f1331b1 100644 --- a/drivers/mtd/chips/cfi_cmdset_0002.c +++ b/drivers/mtd/chips/cfi_cmdset_0002.c @@ -726,7 +726,6 @@ static struct mtd_info *cfi_amdstd_setup(struct mtd_info *mtd) kfree(mtd->eraseregions); kfree(mtd); kfree(cfi->cmdset_priv); - kfree(cfi->cfiq); return NULL; } diff --git a/drivers/mtd/cmdlinepart.c b/drivers/mtd/cmdlinepart.c index fbd5affc0acf..04fd845de05f 100644 --- a/drivers/mtd/cmdlinepart.c +++ b/drivers/mtd/cmdlinepart.c @@ -228,12 +228,29 @@ static int mtdpart_setup_real(char *s) struct cmdline_mtd_partition *this_mtd; struct mtd_partition *parts; int mtd_id_len, num_parts; - char *p, *mtd_id; + char *p, *mtd_id, *semicol; + + /* + * Replace the first ';' by a NULL char so strrchr can work + * properly. + */ + semicol = strchr(s, ';'); + if (semicol) + *semicol = '\0'; mtd_id = s; - /* fetch <mtd-id> */ - p = strchr(s, ':'); + /* + * fetch <mtd-id>. We use strrchr to ignore all ':' that could + * be present in the MTD name, only the last one is interpreted + * as an <mtd-id>/<part-definition> separator. + */ + p = strrchr(s, ':'); + + /* Restore the ';' now. */ + if (semicol) + *semicol = ';'; + if (!p) { pr_err("no mtd-id\n"); return -EINVAL; diff --git a/drivers/mtd/mtdchar.c b/drivers/mtd/mtdchar.c index fa4d12217652..18dd333f2d40 100644 --- a/drivers/mtd/mtdchar.c +++ b/drivers/mtd/mtdchar.c @@ -372,9 +372,6 @@ static int mtdchar_writeoob(struct file *file, struct mtd_info *mtd, uint32_t retlen; int ret = 0; - if (!(file->f_mode & FMODE_WRITE)) - return -EPERM; - if (length > 4096) return -EINVAL; @@ -681,6 +678,48 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) return -EFAULT; } + /* + * Check the file mode to require "dangerous" commands to have write + * permissions. + */ + switch (cmd) { + /* "safe" commands */ + case MEMGETREGIONCOUNT: + case MEMGETREGIONINFO: + case MEMGETINFO: + case MEMREADOOB: + case MEMREADOOB64: + case MEMLOCK: + case MEMUNLOCK: + case MEMISLOCKED: + case MEMGETOOBSEL: + case MEMGETBADBLOCK: + case MEMSETBADBLOCK: + case OTPSELECT: + case OTPGETREGIONCOUNT: + case OTPGETREGIONINFO: + case OTPLOCK: + case ECCGETLAYOUT: + case ECCGETSTATS: + case MTDFILEMODE: + case BLKPG: + case BLKRRPART: + break; + + /* "dangerous" commands */ + case MEMERASE: + case MEMERASE64: + case MEMWRITEOOB: + case MEMWRITEOOB64: + case MEMWRITE: + if (!(file->f_mode & FMODE_WRITE)) + return -EPERM; + break; + + default: + return -ENOTTY; + } + switch (cmd) { case MEMGETREGIONCOUNT: if (copy_to_user(argp, &(mtd->numeraseregions), sizeof(int))) @@ -728,9 +767,6 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) { struct erase_info *erase; - if(!(file->f_mode & FMODE_WRITE)) - return -EPERM; - erase=kzalloc(sizeof(struct erase_info),GFP_KERNEL); if (!erase) ret = -ENOMEM; @@ -1051,9 +1087,6 @@ static int mtdchar_ioctl(struct file *file, u_int cmd, u_long arg) ret = 0; break; } - - default: - ret = -ENOTTY; } return ret; @@ -1097,6 +1130,11 @@ static long mtdchar_compat_ioctl(struct file *file, unsigned int cmd, struct mtd_oob_buf32 buf; struct mtd_oob_buf32 __user *buf_user = argp; + if (!(file->f_mode & FMODE_WRITE)) { + ret = -EPERM; + break; + } + if (copy_from_user(&buf, argp, sizeof(buf))) ret = -EFAULT; else diff --git a/drivers/mtd/nand/ams-delta.c b/drivers/mtd/nand/ams-delta.c index dcec9cf4983f..e22a9ffa9cb7 100644 --- a/drivers/mtd/nand/ams-delta.c +++ b/drivers/mtd/nand/ams-delta.c @@ -263,7 +263,7 @@ static int ams_delta_cleanup(struct platform_device *pdev) void __iomem *io_base = platform_get_drvdata(pdev); /* Release resources, unregister device */ - nand_release(ams_delta_mtd); + nand_release(mtd_to_nand(ams_delta_mtd)); gpio_free_array(_mandatory_gpio, ARRAY_SIZE(_mandatory_gpio)); gpio_free(AMS_DELTA_GPIO_PIN_NAND_RB); diff --git a/drivers/mtd/nand/au1550nd.c b/drivers/mtd/nand/au1550nd.c index 9d4a28fa6b73..99c738be2545 100644 --- a/drivers/mtd/nand/au1550nd.c +++ b/drivers/mtd/nand/au1550nd.c @@ -496,7 +496,7 @@ static int au1550nd_remove(struct platform_device *pdev) struct au1550nd_ctx *ctx = platform_get_drvdata(pdev); struct resource *r = platform_get_resource(pdev, IORESOURCE_MEM, 0); - nand_release(nand_to_mtd(&ctx->chip)); + nand_release(&ctx->chip); iounmap(ctx->base); release_mem_region(r->start, 0x1000); kfree(ctx); diff --git a/drivers/mtd/nand/bcm47xxnflash/main.c b/drivers/mtd/nand/bcm47xxnflash/main.c index fb31429b70a9..d79694160845 100644 --- a/drivers/mtd/nand/bcm47xxnflash/main.c +++ b/drivers/mtd/nand/bcm47xxnflash/main.c @@ -65,7 +65,7 @@ static int bcm47xxnflash_remove(struct platform_device *pdev) { struct bcm47xxnflash *nflash = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&nflash->nand_chip)); + nand_release(&nflash->nand_chip); return 0; } diff --git a/drivers/mtd/nand/bf5xx_nand.c b/drivers/mtd/nand/bf5xx_nand.c index 5655dca6ce43..ebcbcbaa8b54 100644 --- a/drivers/mtd/nand/bf5xx_nand.c +++ b/drivers/mtd/nand/bf5xx_nand.c @@ -688,7 +688,7 @@ static int bf5xx_nand_remove(struct platform_device *pdev) * and their partitions, then go through freeing the * resources used */ - nand_release(nand_to_mtd(&info->chip)); + nand_release(&info->chip); peripheral_free_list(bfin_nfc_pin_req); bf5xx_nand_dma_remove(info); diff --git a/drivers/mtd/nand/brcmnand/brcmnand.c b/drivers/mtd/nand/brcmnand/brcmnand.c index 2a978d9832a7..c65724d0c725 100644 --- a/drivers/mtd/nand/brcmnand/brcmnand.c +++ b/drivers/mtd/nand/brcmnand/brcmnand.c @@ -491,8 +491,9 @@ static int brcmnand_revision_init(struct brcmnand_controller *ctrl) } else { ctrl->cs_offsets = brcmnand_cs_offsets; - /* v5.0 and earlier has a different CS0 offset layout */ - if (ctrl->nand_version <= 0x0500) + /* v3.3-5.0 have a different CS0 offset layout */ + if (ctrl->nand_version >= 0x0303 && + ctrl->nand_version <= 0x0500) ctrl->cs0_offsets = brcmnand_cs_offsets_cs0; } @@ -911,11 +912,14 @@ static int brcmnand_hamming_ooblayout_free(struct mtd_info *mtd, int section, if (!section) { /* * Small-page NAND use byte 6 for BBI while large-page - * NAND use byte 0. + * NAND use bytes 0 and 1. */ - if (cfg->page_size > 512) - oobregion->offset++; - oobregion->length--; + if (cfg->page_size > 512) { + oobregion->offset += 2; + oobregion->length -= 2; + } else { + oobregion->length--; + } } } @@ -2594,7 +2598,7 @@ int brcmnand_remove(struct platform_device *pdev) struct brcmnand_host *host; list_for_each_entry(host, &ctrl->host_list, node) - nand_release(nand_to_mtd(&host->chip)); + nand_release(&host->chip); clk_disable_unprepare(ctrl->clk); diff --git a/drivers/mtd/nand/cafe_nand.c b/drivers/mtd/nand/cafe_nand.c index bc558c438a57..98c013094fa2 100644 --- a/drivers/mtd/nand/cafe_nand.c +++ b/drivers/mtd/nand/cafe_nand.c @@ -826,7 +826,7 @@ static void cafe_nand_remove(struct pci_dev *pdev) /* Disable NAND IRQ in global IRQ mask register */ cafe_writel(cafe, ~1 & cafe_readl(cafe, GLOBAL_IRQ_MASK), GLOBAL_IRQ_MASK); free_irq(pdev->irq, mtd); - nand_release(mtd); + nand_release(chip); free_rs(cafe->rs); pci_iounmap(pdev, cafe->mmio); dma_free_coherent(&cafe->pdev->dev, diff --git a/drivers/mtd/nand/cmx270_nand.c b/drivers/mtd/nand/cmx270_nand.c index 1fc435f994e1..7b824ae88ab0 100644 --- a/drivers/mtd/nand/cmx270_nand.c +++ b/drivers/mtd/nand/cmx270_nand.c @@ -230,7 +230,7 @@ module_init(cmx270_init); static void __exit cmx270_cleanup(void) { /* Release resources, unregister device */ - nand_release(cmx270_nand_mtd); + nand_release(mtd_to_nand(cmx270_nand_mtd)); gpio_free(GPIO_NAND_RB); gpio_free(GPIO_NAND_CS); diff --git a/drivers/mtd/nand/cs553x_nand.c b/drivers/mtd/nand/cs553x_nand.c index d48877540f14..647d4ee69345 100644 --- a/drivers/mtd/nand/cs553x_nand.c +++ b/drivers/mtd/nand/cs553x_nand.c @@ -338,7 +338,7 @@ static void __exit cs553x_cleanup(void) mmio_base = this->IO_ADDR_R; /* Release resources, unregister device */ - nand_release(mtd); + nand_release(this); kfree(mtd->name); cs553x_mtd[i] = NULL; diff --git a/drivers/mtd/nand/davinci_nand.c b/drivers/mtd/nand/davinci_nand.c index ccc8c43abcff..e66f1385b49e 100644 --- a/drivers/mtd/nand/davinci_nand.c +++ b/drivers/mtd/nand/davinci_nand.c @@ -854,7 +854,7 @@ static int nand_davinci_remove(struct platform_device *pdev) ecc4_busy = false; spin_unlock_irq(&davinci_nand_lock); - nand_release(nand_to_mtd(&info->chip)); + nand_release(&info->chip); clk_disable_unprepare(info->clk); diff --git a/drivers/mtd/nand/denali.c b/drivers/mtd/nand/denali.c index 3087b0ba7b7f..390a18ad68ee 100644 --- a/drivers/mtd/nand/denali.c +++ b/drivers/mtd/nand/denali.c @@ -1444,9 +1444,7 @@ EXPORT_SYMBOL(denali_init); /* driver exit point */ void denali_remove(struct denali_nand_info *denali) { - struct mtd_info *mtd = nand_to_mtd(&denali->nand); - - nand_release(mtd); + nand_release(&denali->nand); kfree(denali->buf); denali_disable_irq(denali); } diff --git a/drivers/mtd/nand/diskonchip.c b/drivers/mtd/nand/diskonchip.c index c3aa53caab5c..4f48a9b4f9e3 100644 --- a/drivers/mtd/nand/diskonchip.c +++ b/drivers/mtd/nand/diskonchip.c @@ -1605,13 +1605,10 @@ static int __init doc_probe(unsigned long physadr) numchips = doc2001_init(mtd); if ((ret = nand_scan(mtd, numchips)) || (ret = doc->late_init(mtd))) { - /* DBB note: i believe nand_release is necessary here, as + /* DBB note: i believe nand_cleanup is necessary here, as buffers may have been allocated in nand_base. Check with Thomas. FIX ME! */ - /* nand_release will call mtd_device_unregister, but we - haven't yet added it. This is handled without incident by - mtd_device_unregister, as far as I can tell. */ - nand_release(mtd); + nand_cleanup(nand); kfree(nand); goto fail; } @@ -1644,7 +1641,7 @@ static void release_nanddoc(void) doc = nand_get_controller_data(nand); nextmtd = doc->nextdoc; - nand_release(mtd); + nand_release(nand); iounmap(doc->virtadr); release_mem_region(doc->physadr, DOC_IOREMAP_LEN); kfree(nand); diff --git a/drivers/mtd/nand/docg4.c b/drivers/mtd/nand/docg4.c index 2436cbc71662..53fdf491d8c0 100644 --- a/drivers/mtd/nand/docg4.c +++ b/drivers/mtd/nand/docg4.c @@ -1376,7 +1376,7 @@ static int __init probe_docg4(struct platform_device *pdev) return 0; fail: - nand_release(mtd); /* deletes partitions and mtd devices */ + nand_release(nand); /* deletes partitions and mtd devices */ free_bch(doc->bch); kfree(nand); @@ -1389,7 +1389,7 @@ fail_unmap: static int __exit cleanup_docg4(struct platform_device *pdev) { struct docg4_priv *doc = platform_get_drvdata(pdev); - nand_release(doc->mtd); + nand_release(mtd_to_nand(doc->mtd)); free_bch(doc->bch); kfree(mtd_to_nand(doc->mtd)); iounmap(doc->virtadr); diff --git a/drivers/mtd/nand/fsl_elbc_nand.c b/drivers/mtd/nand/fsl_elbc_nand.c index 17db2f90aa2c..0f70bd961234 100644 --- a/drivers/mtd/nand/fsl_elbc_nand.c +++ b/drivers/mtd/nand/fsl_elbc_nand.c @@ -813,7 +813,7 @@ static int fsl_elbc_chip_remove(struct fsl_elbc_mtd *priv) struct fsl_elbc_fcm_ctrl *elbc_fcm_ctrl = priv->ctrl->nand; struct mtd_info *mtd = nand_to_mtd(&priv->chip); - nand_release(mtd); + nand_release(&priv->chip); kfree(mtd->name); diff --git a/drivers/mtd/nand/fsl_ifc_nand.c b/drivers/mtd/nand/fsl_ifc_nand.c index 16deba1a2385..0d4928161439 100644 --- a/drivers/mtd/nand/fsl_ifc_nand.c +++ b/drivers/mtd/nand/fsl_ifc_nand.c @@ -927,7 +927,7 @@ static int fsl_ifc_chip_remove(struct fsl_ifc_mtd *priv) { struct mtd_info *mtd = nand_to_mtd(&priv->chip); - nand_release(mtd); + nand_release(&priv->chip); kfree(mtd->name); diff --git a/drivers/mtd/nand/fsl_upm.c b/drivers/mtd/nand/fsl_upm.c index a88e2cf66e0f..009e96fb92ae 100644 --- a/drivers/mtd/nand/fsl_upm.c +++ b/drivers/mtd/nand/fsl_upm.c @@ -326,7 +326,7 @@ static int fun_remove(struct platform_device *ofdev) struct mtd_info *mtd = nand_to_mtd(&fun->chip); int i; - nand_release(mtd); + nand_release(&fun->chip); kfree(mtd->name); for (i = 0; i < fun->mchip_count; i++) { diff --git a/drivers/mtd/nand/fsmc_nand.c b/drivers/mtd/nand/fsmc_nand.c index eac15d9bf49e..3be80e15e400 100644 --- a/drivers/mtd/nand/fsmc_nand.c +++ b/drivers/mtd/nand/fsmc_nand.c @@ -1118,7 +1118,7 @@ static int fsmc_nand_remove(struct platform_device *pdev) struct fsmc_nand_data *host = platform_get_drvdata(pdev); if (host) { - nand_release(nand_to_mtd(&host->nand)); + nand_release(&host->nand); if (host->mode == USE_DMA_ACCESS) { dma_release_channel(host->write_dma_chan); diff --git a/drivers/mtd/nand/gpio.c b/drivers/mtd/nand/gpio.c index fd3648952b5a..81b02b81e984 100644 --- a/drivers/mtd/nand/gpio.c +++ b/drivers/mtd/nand/gpio.c @@ -199,7 +199,7 @@ static int gpio_nand_remove(struct platform_device *pdev) { struct gpiomtd *gpiomtd = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&gpiomtd->nand_chip)); + nand_release(&gpiomtd->nand_chip); if (gpio_is_valid(gpiomtd->plat.gpio_nwp)) gpio_set_value(gpiomtd->plat.gpio_nwp, 0); diff --git a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c index d4d824ef64e9..c7d0d2eed6c2 100644 --- a/drivers/mtd/nand/gpmi-nand/gpmi-nand.c +++ b/drivers/mtd/nand/gpmi-nand/gpmi-nand.c @@ -2135,7 +2135,7 @@ static int gpmi_nand_remove(struct platform_device *pdev) { struct gpmi_nand_data *this = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&this->nand)); + nand_release(&this->nand); gpmi_free_dma_buffer(this); release_resources(this); return 0; diff --git a/drivers/mtd/nand/hisi504_nand.c b/drivers/mtd/nand/hisi504_nand.c index d9ee1a7e6956..1d1b541489f8 100644 --- a/drivers/mtd/nand/hisi504_nand.c +++ b/drivers/mtd/nand/hisi504_nand.c @@ -823,7 +823,7 @@ static int hisi_nfc_probe(struct platform_device *pdev) return 0; err_mtd: - nand_release(mtd); + nand_release(chip); err_res: return ret; } @@ -831,9 +831,8 @@ err_res: static int hisi_nfc_remove(struct platform_device *pdev) { struct hinfc_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = nand_to_mtd(&host->chip); - nand_release(mtd); + nand_release(&host->chip); return 0; } diff --git a/drivers/mtd/nand/jz4740_nand.c b/drivers/mtd/nand/jz4740_nand.c index ad827d4af3e9..62ddea88edce 100644 --- a/drivers/mtd/nand/jz4740_nand.c +++ b/drivers/mtd/nand/jz4740_nand.c @@ -480,7 +480,7 @@ static int jz_nand_probe(struct platform_device *pdev) return 0; err_nand_release: - nand_release(mtd); + nand_release(chip); err_unclaim_banks: while (chipnr--) { unsigned char bank = nand->banks[chipnr]; @@ -500,7 +500,7 @@ static int jz_nand_remove(struct platform_device *pdev) struct jz_nand *nand = platform_get_drvdata(pdev); size_t i; - nand_release(nand_to_mtd(&nand->chip)); + nand_release(&nand->chip); /* Deassert and disable all chips */ writel(0, nand->base + JZ_REG_NAND_CTRL); diff --git a/drivers/mtd/nand/jz4780_nand.c b/drivers/mtd/nand/jz4780_nand.c index e69f6ae4c539..86ff46eb7925 100644 --- a/drivers/mtd/nand/jz4780_nand.c +++ b/drivers/mtd/nand/jz4780_nand.c @@ -293,7 +293,7 @@ static int jz4780_nand_init_chip(struct platform_device *pdev, ret = mtd_device_register(mtd, NULL, 0); if (ret) { - nand_release(mtd); + nand_release(chip); return ret; } @@ -308,7 +308,7 @@ static void jz4780_nand_cleanup_chips(struct jz4780_nand_controller *nfc) while (!list_empty(&nfc->chips)) { chip = list_first_entry(&nfc->chips, struct jz4780_nand_chip, chip_list); - nand_release(nand_to_mtd(&chip->chip)); + nand_release(&chip->chip); list_del(&chip->chip_list); } } diff --git a/drivers/mtd/nand/lpc32xx_mlc.c b/drivers/mtd/nand/lpc32xx_mlc.c index 5796468db653..d19d07931c2b 100644 --- a/drivers/mtd/nand/lpc32xx_mlc.c +++ b/drivers/mtd/nand/lpc32xx_mlc.c @@ -805,7 +805,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) if (!res) return res; - nand_release(mtd); + nand_release(nand_chip); err_exit4: free_irq(host->irq, host); @@ -829,9 +829,8 @@ err_exit1: static int lpc32xx_nand_remove(struct platform_device *pdev) { struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); - nand_release(mtd); + nand_release(&host->nand_chip); free_irq(host->irq, host); if (use_dma) dma_release_channel(host->dma_chan); diff --git a/drivers/mtd/nand/lpc32xx_slc.c b/drivers/mtd/nand/lpc32xx_slc.c index b61f28a1554d..1be4aaa3d6e0 100644 --- a/drivers/mtd/nand/lpc32xx_slc.c +++ b/drivers/mtd/nand/lpc32xx_slc.c @@ -935,7 +935,7 @@ static int lpc32xx_nand_probe(struct platform_device *pdev) if (!res) return res; - nand_release(mtd); + nand_release(chip); err_exit3: dma_release_channel(host->dma_chan); @@ -954,9 +954,8 @@ static int lpc32xx_nand_remove(struct platform_device *pdev) { uint32_t tmp; struct lpc32xx_nand_host *host = platform_get_drvdata(pdev); - struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); - nand_release(mtd); + nand_release(&host->nand_chip); dma_release_channel(host->dma_chan); /* Force CE high */ diff --git a/drivers/mtd/nand/mpc5121_nfc.c b/drivers/mtd/nand/mpc5121_nfc.c index b6b97cc9fba6..b8a93b47a290 100644 --- a/drivers/mtd/nand/mpc5121_nfc.c +++ b/drivers/mtd/nand/mpc5121_nfc.c @@ -829,7 +829,7 @@ static int mpc5121_nfc_remove(struct platform_device *op) struct device *dev = &op->dev; struct mtd_info *mtd = dev_get_drvdata(dev); - nand_release(mtd); + nand_release(mtd_to_nand(mtd)); mpc5121_nfc_free(dev, mtd); return 0; diff --git a/drivers/mtd/nand/mtk_nand.c b/drivers/mtd/nand/mtk_nand.c index e17f838b9b81..ff314ce104e5 100644 --- a/drivers/mtd/nand/mtk_nand.c +++ b/drivers/mtd/nand/mtk_nand.c @@ -1357,7 +1357,7 @@ static int mtk_nfc_nand_chip_init(struct device *dev, struct mtk_nfc *nfc, ret = mtd_device_parse_register(mtd, NULL, NULL, NULL, 0); if (ret) { dev_err(dev, "mtd parse partition error\n"); - nand_release(mtd); + nand_cleanup(nand); return ret; } @@ -1514,7 +1514,7 @@ static int mtk_nfc_remove(struct platform_device *pdev) while (!list_empty(&nfc->chips)) { chip = list_first_entry(&nfc->chips, struct mtk_nfc_nand_chip, node); - nand_release(nand_to_mtd(&chip->nand)); + nand_release(&chip->nand); list_del(&chip->node); } diff --git a/drivers/mtd/nand/mxc_nand.c b/drivers/mtd/nand/mxc_nand.c index fcb575d55b89..808d85bde9f2 100644 --- a/drivers/mtd/nand/mxc_nand.c +++ b/drivers/mtd/nand/mxc_nand.c @@ -1834,7 +1834,7 @@ static int mxcnd_remove(struct platform_device *pdev) { struct mxc_nand_host *host = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&host->nand)); + nand_release(&host->nand); if (host->clk_act) clk_disable_unprepare(host->clk); diff --git a/drivers/mtd/nand/nand_base.c b/drivers/mtd/nand/nand_base.c index d410de331854..e953eca67608 100644 --- a/drivers/mtd/nand/nand_base.c +++ b/drivers/mtd/nand/nand_base.c @@ -5046,12 +5046,12 @@ EXPORT_SYMBOL_GPL(nand_cleanup); /** * nand_release - [NAND Interface] Unregister the MTD device and free resources * held by the NAND device - * @mtd: MTD device structure + * @chip: NAND chip object */ -void nand_release(struct mtd_info *mtd) +void nand_release(struct nand_chip *chip) { - mtd_device_unregister(mtd); - nand_cleanup(mtd_to_nand(mtd)); + mtd_device_unregister(nand_to_mtd(chip)); + nand_cleanup(chip); } EXPORT_SYMBOL_GPL(nand_release); diff --git a/drivers/mtd/nand/nandsim.c b/drivers/mtd/nand/nandsim.c index 44322a363ba5..dbb0e47f5197 100644 --- a/drivers/mtd/nand/nandsim.c +++ b/drivers/mtd/nand/nandsim.c @@ -2356,7 +2356,7 @@ static int __init ns_init_module(void) err_exit: free_nandsim(nand); - nand_release(nsmtd); + nand_release(chip); for (i = 0;i < ARRAY_SIZE(nand->partitions); ++i) kfree(nand->partitions[i].name); error: @@ -2378,7 +2378,7 @@ static void __exit ns_cleanup_module(void) int i; free_nandsim(ns); /* Free nandsim private resources */ - nand_release(nsmtd); /* Unregister driver */ + nand_release(chip); /* Unregister driver */ for (i = 0;i < ARRAY_SIZE(ns->partitions); ++i) kfree(ns->partitions[i].name); kfree(mtd_to_nand(nsmtd)); /* Free other structures */ diff --git a/drivers/mtd/nand/ndfc.c b/drivers/mtd/nand/ndfc.c index d8a806894937..eb84328d9bde 100644 --- a/drivers/mtd/nand/ndfc.c +++ b/drivers/mtd/nand/ndfc.c @@ -258,7 +258,7 @@ static int ndfc_remove(struct platform_device *ofdev) struct ndfc_controller *ndfc = dev_get_drvdata(&ofdev->dev); struct mtd_info *mtd = nand_to_mtd(&ndfc->chip); - nand_release(mtd); + nand_release(&ndfc->chip); kfree(mtd->name); return 0; diff --git a/drivers/mtd/nand/nuc900_nand.c b/drivers/mtd/nand/nuc900_nand.c index 7bb4d2ea9342..a79f88c6d010 100644 --- a/drivers/mtd/nand/nuc900_nand.c +++ b/drivers/mtd/nand/nuc900_nand.c @@ -284,7 +284,7 @@ static int nuc900_nand_remove(struct platform_device *pdev) { struct nuc900_nand *nuc900_nand = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&nuc900_nand->chip)); + nand_release(&nuc900_nand->chip); clk_disable(nuc900_nand->clk); return 0; diff --git a/drivers/mtd/nand/omap2.c b/drivers/mtd/nand/omap2.c index 9f98f74ff221..110c0726c665 100644 --- a/drivers/mtd/nand/omap2.c +++ b/drivers/mtd/nand/omap2.c @@ -2306,7 +2306,7 @@ static int omap_nand_remove(struct platform_device *pdev) } if (info->dma) dma_release_channel(info->dma); - nand_release(mtd); + nand_release(nand_chip); return 0; } diff --git a/drivers/mtd/nand/omap_elm.c b/drivers/mtd/nand/omap_elm.c index a3f32f939cc1..6736777a4156 100644 --- a/drivers/mtd/nand/omap_elm.c +++ b/drivers/mtd/nand/omap_elm.c @@ -421,6 +421,7 @@ static int elm_probe(struct platform_device *pdev) pm_runtime_enable(&pdev->dev); if (pm_runtime_get_sync(&pdev->dev) < 0) { ret = -EINVAL; + pm_runtime_put_sync(&pdev->dev); pm_runtime_disable(&pdev->dev); dev_err(&pdev->dev, "can't enable clock\n"); return ret; diff --git a/drivers/mtd/nand/orion_nand.c b/drivers/mtd/nand/orion_nand.c index 5a5aa1f07d07..df07f9b4cf03 100644 --- a/drivers/mtd/nand/orion_nand.c +++ b/drivers/mtd/nand/orion_nand.c @@ -186,7 +186,7 @@ static int __init orion_nand_probe(struct platform_device *pdev) mtd->name = "orion_nand"; ret = mtd_device_register(mtd, board->parts, board->nr_parts); if (ret) { - nand_release(mtd); + nand_cleanup(nc); goto no_dev; } @@ -201,9 +201,8 @@ static int orion_nand_remove(struct platform_device *pdev) { struct orion_nand_info *info = platform_get_drvdata(pdev); struct nand_chip *chip = &info->chip; - struct mtd_info *mtd = nand_to_mtd(chip); - nand_release(mtd); + nand_release(chip); clk_disable_unprepare(info->clk); diff --git a/drivers/mtd/nand/oxnas_nand.c b/drivers/mtd/nand/oxnas_nand.c index d649d5944826..08b6ae364f2b 100644 --- a/drivers/mtd/nand/oxnas_nand.c +++ b/drivers/mtd/nand/oxnas_nand.c @@ -36,6 +36,7 @@ struct oxnas_nand_ctrl { void __iomem *io_base; struct clk *clk; struct nand_chip *chips[OXNAS_NAND_MAX_CHIPS]; + unsigned int nchips; }; static uint8_t oxnas_nand_read_byte(struct mtd_info *mtd) @@ -86,9 +87,9 @@ static int oxnas_nand_probe(struct platform_device *pdev) struct nand_chip *chip; struct mtd_info *mtd; struct resource *res; - int nchips = 0; int count = 0; int err = 0; + int i; /* Allocate memory for the device structure (and zero it) */ oxnas = devm_kzalloc(&pdev->dev, sizeof(*oxnas), @@ -123,7 +124,7 @@ static int oxnas_nand_probe(struct platform_device *pdev) GFP_KERNEL); if (!chip) { err = -ENOMEM; - goto err_clk_unprepare; + goto err_release_child; } chip->controller = &oxnas->base; @@ -144,20 +145,18 @@ static int oxnas_nand_probe(struct platform_device *pdev) /* Scan to find existence of the device */ err = nand_scan(mtd, 1); if (err) - goto err_clk_unprepare; + goto err_release_child; err = mtd_device_register(mtd, NULL, 0); - if (err) { - nand_release(mtd); - goto err_clk_unprepare; - } + if (err) + goto err_cleanup_nand; - oxnas->chips[nchips] = chip; - ++nchips; + oxnas->chips[oxnas->nchips] = chip; + ++oxnas->nchips; } /* Exit if no chips found */ - if (!nchips) { + if (!oxnas->nchips) { err = -ENODEV; goto err_clk_unprepare; } @@ -166,6 +165,17 @@ static int oxnas_nand_probe(struct platform_device *pdev) return 0; +err_cleanup_nand: + nand_cleanup(chip); +err_release_child: + of_node_put(nand_np); + + for (i = 0; i < oxnas->nchips; i++) { + chip = oxnas->chips[i]; + WARN_ON(mtd_device_unregister(nand_to_mtd(chip))); + nand_cleanup(chip); + } + err_clk_unprepare: clk_disable_unprepare(oxnas->clk); return err; @@ -174,9 +184,13 @@ err_clk_unprepare: static int oxnas_nand_remove(struct platform_device *pdev) { struct oxnas_nand_ctrl *oxnas = platform_get_drvdata(pdev); + struct nand_chip *chip; + int i; - if (oxnas->chips[0]) - nand_release(nand_to_mtd(oxnas->chips[0])); + for (i = 0; i < oxnas->nchips; i++) { + chip = oxnas->chips[i]; + nand_release(chip); + } clk_disable_unprepare(oxnas->clk); diff --git a/drivers/mtd/nand/pasemi_nand.c b/drivers/mtd/nand/pasemi_nand.c index a47a7e4bd25a..f0f4ff960965 100644 --- a/drivers/mtd/nand/pasemi_nand.c +++ b/drivers/mtd/nand/pasemi_nand.c @@ -163,7 +163,7 @@ static int pasemi_nand_probe(struct platform_device *ofdev) if (mtd_device_register(pasemi_nand_mtd, NULL, 0)) { dev_err(dev, "Unable to register MTD device\n"); err = -ENODEV; - goto out_lpc; + goto out_cleanup_nand; } dev_info(dev, "PA Semi NAND flash at %pR, control at I/O %x\n", &res, @@ -171,6 +171,8 @@ static int pasemi_nand_probe(struct platform_device *ofdev) return 0; + out_cleanup_nand: + nand_cleanup(chip); out_lpc: release_region(lpcctl, 4); out_ior: @@ -191,7 +193,7 @@ static int pasemi_nand_remove(struct platform_device *ofdev) chip = mtd_to_nand(pasemi_nand_mtd); /* Release resources, unregister device */ - nand_release(pasemi_nand_mtd); + nand_release(chip); release_region(lpcctl, 4); diff --git a/drivers/mtd/nand/plat_nand.c b/drivers/mtd/nand/plat_nand.c index 925a1323604d..8c2d1c5c9569 100644 --- a/drivers/mtd/nand/plat_nand.c +++ b/drivers/mtd/nand/plat_nand.c @@ -99,7 +99,7 @@ static int plat_nand_probe(struct platform_device *pdev) if (!err) return err; - nand_release(mtd); + nand_cleanup(&data->chip); out: if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); @@ -114,7 +114,7 @@ static int plat_nand_remove(struct platform_device *pdev) struct plat_nand_data *data = platform_get_drvdata(pdev); struct platform_nand_data *pdata = dev_get_platdata(&pdev->dev); - nand_release(nand_to_mtd(&data->chip)); + nand_release(&data->chip); if (pdata->ctrl.remove) pdata->ctrl.remove(pdev); diff --git a/drivers/mtd/nand/pxa3xx_nand.c b/drivers/mtd/nand/pxa3xx_nand.c index 125b744c9c28..df62f99979f3 100644 --- a/drivers/mtd/nand/pxa3xx_nand.c +++ b/drivers/mtd/nand/pxa3xx_nand.c @@ -1915,7 +1915,7 @@ static int pxa3xx_nand_remove(struct platform_device *pdev) clk_disable_unprepare(info->clk); for (cs = 0; cs < pdata->num_cs; cs++) - nand_release(nand_to_mtd(&info->host[cs]->chip)); + nand_release(&info->host[cs]->chip); return 0; } diff --git a/drivers/mtd/nand/qcom_nandc.c b/drivers/mtd/nand/qcom_nandc.c index 09d5f7df6023..b57678970033 100644 --- a/drivers/mtd/nand/qcom_nandc.c +++ b/drivers/mtd/nand/qcom_nandc.c @@ -435,11 +435,13 @@ struct qcom_nand_host { * among different NAND controllers. * @ecc_modes - ecc mode for NAND * @is_bam - whether NAND controller is using BAM + * @is_qpic - whether NAND CTRL is part of qpic IP * @dev_cmd_reg_start - NAND_DEV_CMD_* registers starting offset */ struct qcom_nandc_props { u32 ecc_modes; bool is_bam; + bool is_qpic; u32 dev_cmd_reg_start; }; @@ -2508,7 +2510,8 @@ static int qcom_nandc_setup(struct qcom_nand_controller *nandc) u32 nand_ctrl; /* kill onenand */ - nandc_write(nandc, SFLASHC_BURST_CFG, 0); + if (!nandc->props->is_qpic) + nandc_write(nandc, SFLASHC_BURST_CFG, 0); nandc_write(nandc, dev_cmd_reg_addr(nandc, NAND_DEV_CMD_VLD), NAND_DEV_CMD_VLD_VAL); @@ -2760,7 +2763,7 @@ static int qcom_nandc_remove(struct platform_device *pdev) struct qcom_nand_host *host; list_for_each_entry(host, &nandc->host_list, node) - nand_release(nand_to_mtd(&host->chip)); + nand_release(&host->chip); qcom_nandc_unalloc(nandc); @@ -2779,12 +2782,14 @@ static const struct qcom_nandc_props ipq806x_nandc_props = { static const struct qcom_nandc_props ipq4019_nandc_props = { .ecc_modes = (ECC_BCH_4BIT | ECC_BCH_8BIT), .is_bam = true, + .is_qpic = true, .dev_cmd_reg_start = 0x0, }; static const struct qcom_nandc_props ipq8074_nandc_props = { .ecc_modes = (ECC_BCH_4BIT | ECC_BCH_8BIT), .is_bam = true, + .is_qpic = true, .dev_cmd_reg_start = 0x7000, }; diff --git a/drivers/mtd/nand/r852.c b/drivers/mtd/nand/r852.c index fc9287af4614..2cfa54941395 100644 --- a/drivers/mtd/nand/r852.c +++ b/drivers/mtd/nand/r852.c @@ -656,7 +656,7 @@ static int r852_register_nand_device(struct r852_device *dev) dev->card_registred = 1; return 0; error3: - nand_release(mtd); + nand_release(dev->chip); error1: /* Force card redetect */ dev->card_detected = 0; @@ -675,7 +675,7 @@ static void r852_unregister_nand_device(struct r852_device *dev) return; device_remove_file(&mtd->dev, &dev_attr_media_type); - nand_release(mtd); + nand_release(dev->chip); r852_engine_disable(dev); dev->card_registred = 0; } diff --git a/drivers/mtd/nand/s3c2410.c b/drivers/mtd/nand/s3c2410.c index 4c383eeec6f6..f60de68bfabc 100644 --- a/drivers/mtd/nand/s3c2410.c +++ b/drivers/mtd/nand/s3c2410.c @@ -784,7 +784,7 @@ static int s3c24xx_nand_remove(struct platform_device *pdev) for (mtdno = 0; mtdno < info->mtd_count; mtdno++, ptr++) { pr_debug("releasing mtd %d (%p)\n", mtdno, ptr); - nand_release(nand_to_mtd(&ptr->chip)); + nand_release(&ptr->chip); } } diff --git a/drivers/mtd/nand/sh_flctl.c b/drivers/mtd/nand/sh_flctl.c index 43db80e5d994..f2ed03ee3035 100644 --- a/drivers/mtd/nand/sh_flctl.c +++ b/drivers/mtd/nand/sh_flctl.c @@ -1231,7 +1231,7 @@ static int flctl_remove(struct platform_device *pdev) struct sh_flctl *flctl = platform_get_drvdata(pdev); flctl_release_dma(flctl); - nand_release(nand_to_mtd(&flctl->chip)); + nand_release(&flctl->chip); pm_runtime_disable(&pdev->dev); return 0; diff --git a/drivers/mtd/nand/sharpsl.c b/drivers/mtd/nand/sharpsl.c index f59c455d9f51..c245d66609c1 100644 --- a/drivers/mtd/nand/sharpsl.c +++ b/drivers/mtd/nand/sharpsl.c @@ -192,7 +192,7 @@ static int sharpsl_nand_probe(struct platform_device *pdev) return 0; err_add: - nand_release(mtd); + nand_cleanup(this); err_scan: iounmap(sharpsl->io); @@ -210,7 +210,7 @@ static int sharpsl_nand_remove(struct platform_device *pdev) struct sharpsl_nand *sharpsl = platform_get_drvdata(pdev); /* Release resources, unregister device */ - nand_release(nand_to_mtd(&sharpsl->chip)); + nand_release(&sharpsl->chip); iounmap(sharpsl->io); diff --git a/drivers/mtd/nand/socrates_nand.c b/drivers/mtd/nand/socrates_nand.c index 575997d0ef8a..8d4f0cd7197d 100644 --- a/drivers/mtd/nand/socrates_nand.c +++ b/drivers/mtd/nand/socrates_nand.c @@ -195,7 +195,7 @@ static int socrates_nand_probe(struct platform_device *ofdev) if (!res) return res; - nand_release(mtd); + nand_cleanup(nand_chip); out: iounmap(host->io_base); @@ -208,9 +208,8 @@ out: static int socrates_nand_remove(struct platform_device *ofdev) { struct socrates_nand_host *host = dev_get_drvdata(&ofdev->dev); - struct mtd_info *mtd = nand_to_mtd(&host->nand_chip); - nand_release(mtd); + nand_release(&host->nand_chip); iounmap(host->io_base); diff --git a/drivers/mtd/nand/sunxi_nand.c b/drivers/mtd/nand/sunxi_nand.c index 8e5231482397..916e0ccd1e27 100644 --- a/drivers/mtd/nand/sunxi_nand.c +++ b/drivers/mtd/nand/sunxi_nand.c @@ -2125,7 +2125,7 @@ static int sunxi_nand_chip_init(struct device *dev, struct sunxi_nfc *nfc, ret = mtd_device_register(mtd, NULL, 0); if (ret) { dev_err(dev, "failed to register mtd device: %d\n", ret); - nand_release(mtd); + nand_cleanup(nand); return ret; } @@ -2164,7 +2164,7 @@ static void sunxi_nand_chips_cleanup(struct sunxi_nfc *nfc) while (!list_empty(&nfc->chips)) { chip = list_first_entry(&nfc->chips, struct sunxi_nand_chip, node); - nand_release(nand_to_mtd(&chip->nand)); + nand_release(&chip->nand); sunxi_nand_ecc_cleanup(&chip->nand.ecc); list_del(&chip->node); } diff --git a/drivers/mtd/nand/tango_nand.c b/drivers/mtd/nand/tango_nand.c index ce366816a7ef..1ab16a90ea29 100644 --- a/drivers/mtd/nand/tango_nand.c +++ b/drivers/mtd/nand/tango_nand.c @@ -619,7 +619,7 @@ static int tango_nand_remove(struct platform_device *pdev) for (cs = 0; cs < MAX_CS; ++cs) { if (nfc->chips[cs]) - nand_release(nand_to_mtd(&nfc->chips[cs]->nand_chip)); + nand_release(&nfc->chips[cs]->nand_chip); } return 0; diff --git a/drivers/mtd/nand/tmio_nand.c b/drivers/mtd/nand/tmio_nand.c index 84dbf32332e1..51f12b9f90ba 100644 --- a/drivers/mtd/nand/tmio_nand.c +++ b/drivers/mtd/nand/tmio_nand.c @@ -448,7 +448,7 @@ static int tmio_probe(struct platform_device *dev) if (!retval) return retval; - nand_release(mtd); + nand_cleanup(nand_chip); err_irq: tmio_hw_stop(dev, tmio); @@ -459,7 +459,7 @@ static int tmio_remove(struct platform_device *dev) { struct tmio_nand *tmio = platform_get_drvdata(dev); - nand_release(nand_to_mtd(&tmio->chip)); + nand_release(&tmio->chip); tmio_hw_stop(dev, tmio); return 0; } diff --git a/drivers/mtd/nand/txx9ndfmc.c b/drivers/mtd/nand/txx9ndfmc.c index b567d212fe7d..236181b2985a 100644 --- a/drivers/mtd/nand/txx9ndfmc.c +++ b/drivers/mtd/nand/txx9ndfmc.c @@ -390,7 +390,7 @@ static int __exit txx9ndfmc_remove(struct platform_device *dev) chip = mtd_to_nand(mtd); txx9_priv = nand_get_controller_data(chip); - nand_release(mtd); + nand_release(chip); kfree(txx9_priv->mtdname); kfree(txx9_priv); } diff --git a/drivers/mtd/nand/vf610_nfc.c b/drivers/mtd/nand/vf610_nfc.c index e2583a539b41..688393526b5a 100644 --- a/drivers/mtd/nand/vf610_nfc.c +++ b/drivers/mtd/nand/vf610_nfc.c @@ -794,7 +794,7 @@ static int vf610_nfc_remove(struct platform_device *pdev) struct mtd_info *mtd = platform_get_drvdata(pdev); struct vf610_nfc *nfc = mtd_to_nfc(mtd); - nand_release(mtd); + nand_release(mtd_to_nand(mtd)); clk_disable_unprepare(nfc->clk); return 0; } diff --git a/drivers/mtd/nand/xway_nand.c b/drivers/mtd/nand/xway_nand.c index 9926b4e3d69d..176a94fa31d7 100644 --- a/drivers/mtd/nand/xway_nand.c +++ b/drivers/mtd/nand/xway_nand.c @@ -211,7 +211,7 @@ static int xway_nand_probe(struct platform_device *pdev) err = mtd_device_register(mtd, NULL, 0); if (err) - nand_release(mtd); + nand_cleanup(&data->chip); return err; } @@ -223,7 +223,7 @@ static int xway_nand_remove(struct platform_device *pdev) { struct xway_nand_data *data = platform_get_drvdata(pdev); - nand_release(nand_to_mtd(&data->chip)); + nand_release(&data->chip); return 0; } |