diff options
Diffstat (limited to 'drivers/nvmem')
| -rw-r--r-- | drivers/nvmem/core.c | 8 | ||||
| -rw-r--r-- | drivers/nvmem/imx-ocotp.c | 4 | ||||
| -rw-r--r-- | drivers/nvmem/nvmem-sysfs.c | 6 | ||||
| -rw-r--r-- | drivers/nvmem/qfprom.c | 14 |
4 files changed, 15 insertions, 17 deletions
diff --git a/drivers/nvmem/core.c b/drivers/nvmem/core.c index c7892c3da91f..a93e17f10e9b 100644 --- a/drivers/nvmem/core.c +++ b/drivers/nvmem/core.c @@ -115,7 +115,7 @@ static void nvmem_cell_drop(struct nvmem_cell *cell) list_del(&cell->node); mutex_unlock(&nvmem_mutex); of_node_put(cell->np); - kfree(cell->name); + kfree_const(cell->name); kfree(cell); } @@ -142,7 +142,9 @@ static int nvmem_cell_info_to_nvmem_cell(struct nvmem_device *nvmem, cell->nvmem = nvmem; cell->offset = info->offset; cell->bytes = info->bytes; - cell->name = info->name; + cell->name = kstrdup_const(info->name, GFP_KERNEL); + if (!cell->name) + return -ENOMEM; cell->bit_offset = info->bit_offset; cell->nbits = info->nbits; @@ -332,7 +334,7 @@ static int nvmem_add_cells_from_of(struct nvmem_device *nvmem) dev_err(dev, "cell %s unaligned to nvmem stride %d\n", cell->name, nvmem->stride); /* Cells already added will be freed later. */ - kfree(cell->name); + kfree_const(cell->name); kfree(cell); return -EINVAL; } diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index bd016b928589..b58406c71ece 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -478,6 +478,10 @@ static int imx_ocotp_probe(struct platform_device *pdev) if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk); + clk_prepare_enable(priv->clk); + imx_ocotp_clr_err_if_set(priv->base); + clk_disable_unprepare(priv->clk); + priv->params = of_device_get_match_data(&pdev->dev); imx_ocotp_nvmem_config.size = 4 * priv->params->nregs; imx_ocotp_nvmem_config.dev = dev; diff --git a/drivers/nvmem/nvmem-sysfs.c b/drivers/nvmem/nvmem-sysfs.c index 9e0c429cd08a..8759c4470012 100644 --- a/drivers/nvmem/nvmem-sysfs.c +++ b/drivers/nvmem/nvmem-sysfs.c @@ -56,6 +56,9 @@ static ssize_t bin_attr_nvmem_read(struct file *filp, struct kobject *kobj, count = round_down(count, nvmem->word_size); + if (!nvmem->reg_read) + return -EPERM; + rc = nvmem->reg_read(nvmem->priv, pos, buf, count); if (rc) @@ -90,6 +93,9 @@ static ssize_t bin_attr_nvmem_write(struct file *filp, struct kobject *kobj, count = round_down(count, nvmem->word_size); + if (!nvmem->reg_write) + return -EPERM; + rc = nvmem->reg_write(nvmem->priv, pos, buf, count); if (rc) diff --git a/drivers/nvmem/qfprom.c b/drivers/nvmem/qfprom.c index d057f1bfb2e9..8a91717600be 100644 --- a/drivers/nvmem/qfprom.c +++ b/drivers/nvmem/qfprom.c @@ -27,25 +27,11 @@ static int qfprom_reg_read(void *context, return 0; } -static int qfprom_reg_write(void *context, - unsigned int reg, void *_val, size_t bytes) -{ - struct qfprom_priv *priv = context; - u8 *val = _val; - int i = 0, words = bytes; - - while (words--) - writeb(*val++, priv->base + reg + i++); - - return 0; -} - static struct nvmem_config econfig = { .name = "qfprom", .stride = 1, .word_size = 1, .reg_read = qfprom_reg_read, - .reg_write = qfprom_reg_write, }; static int qfprom_probe(struct platform_device *pdev) |