diff options
Diffstat (limited to 'drivers/dma/xilinx/xilinx_dma.c')
| -rw-r--r-- | drivers/dma/xilinx/xilinx_dma.c | 29 |
1 files changed, 17 insertions, 12 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c index ba35f8bf8a9a..cdaf4bd2258a 100644 --- a/drivers/dma/xilinx/xilinx_dma.c +++ b/drivers/dma/xilinx/xilinx_dma.c @@ -2660,7 +2660,6 @@ static int xilinx_dma_probe(struct platform_device *pdev) struct device_node *node = pdev->dev.of_node; struct xilinx_dma_device *xdev; struct device_node *child, *np = pdev->dev.of_node; - struct resource *io; u32 num_frames, addr_width, len_width; int i, err; @@ -2686,11 +2685,11 @@ static int xilinx_dma_probe(struct platform_device *pdev) return err; /* Request and map I/O memory */ - io = platform_get_resource(pdev, IORESOURCE_MEM, 0); - xdev->regs = devm_ioremap_resource(&pdev->dev, io); - if (IS_ERR(xdev->regs)) - return PTR_ERR(xdev->regs); - + xdev->regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(xdev->regs)) { + err = PTR_ERR(xdev->regs); + goto disable_clks; + } /* Retrieve the DMA engine properties from the device tree */ xdev->max_buffer_len = GENMASK(XILINX_DMA_MAX_TRANS_LEN_MAX - 1, 0); @@ -2716,7 +2715,7 @@ static int xilinx_dma_probe(struct platform_device *pdev) if (err < 0) { dev_err(xdev->dev, "missing xlnx,num-fstores property\n"); - return err; + goto disable_clks; } err = of_property_read_u32(node, "xlnx,flush-fsync", @@ -2736,7 +2735,11 @@ static int xilinx_dma_probe(struct platform_device *pdev) xdev->ext_addr = false; /* Set the dma mask bits */ - dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + err = dma_set_mask_and_coherent(xdev->dev, DMA_BIT_MASK(addr_width)); + if (err < 0) { + dev_err(xdev->dev, "DMA mask error %d\n", err); + goto disable_clks; + } /* Initialize the DMA engine */ xdev->common.dev = &pdev->dev; @@ -2782,8 +2785,10 @@ static int xilinx_dma_probe(struct platform_device *pdev) /* Initialize the channels */ for_each_child_of_node(node, child) { err = xilinx_dma_child_probe(xdev, child); - if (err < 0) - goto disable_clks; + if (err < 0) { + of_node_put(child); + goto error; + } } if (xdev->dma_config->dmatype == XDMA_TYPE_VDMA) { @@ -2816,12 +2821,12 @@ static int xilinx_dma_probe(struct platform_device *pdev) return 0; -disable_clks: - xdma_disable_allclks(xdev); error: for (i = 0; i < xdev->nr_channels; i++) if (xdev->chan[i]) xilinx_dma_chan_remove(xdev->chan[i]); +disable_clks: + xdma_disable_allclks(xdev); return err; } |