Messages in this thread Patch in this message | | | From | Jia-Ju Bai <> | Subject | [PATCH] dma: xilinx: check the return value of dma_set_mask() in zynqmp_dma_probe() | Date | Wed, 2 Mar 2022 18:43:34 -0800 |
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The function dma_set_mask() in zynqmp_dma_probe() can fail, so its return value should be checked.
Fixes: b0cc417c1637 ("dmaengine: Add Xilinx zynqmp dma engine driver support") Reported-by: TOTE Robot <oslab@tsinghua.edu.cn> Signed-off-by: Jia-Ju Bai <baijiaju1990@gmail.com> --- drivers/dma/xilinx/zynqmp_dma.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/dma/xilinx/zynqmp_dma.c b/drivers/dma/xilinx/zynqmp_dma.c index 7aa63b652027..963fb1de93af 100644 --- a/drivers/dma/xilinx/zynqmp_dma.c +++ b/drivers/dma/xilinx/zynqmp_dma.c @@ -1050,7 +1050,8 @@ static int zynqmp_dma_probe(struct platform_device *pdev) zdev->dev = &pdev->dev; INIT_LIST_HEAD(&zdev->common.channels); - dma_set_mask(&pdev->dev, DMA_BIT_MASK(44)); + if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(44))) + return -EIO; dma_cap_set(DMA_MEMCPY, zdev->common.cap_mask); p = &zdev->common; -- 2.17.1
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