From: Jiasheng Jiang jiasheng@iscas.ac.cn
[ Upstream commit 43f0633f89947df57fe0b5025bdd741768007708 ]
The return value of dma_set_coherent_mask() is not always 0. To catch the exception in case that dma is not support the mask.
Link: https://lore.kernel.org/linux-media/20211206022201.1639460-1-jiasheng@iscas.... Fixes: b0444f18e0b1 ("[media] coda: add i.MX6 VDOA driver") Signed-off-by: Jiasheng Jiang jiasheng@iscas.ac.cn Signed-off-by: Mauro Carvalho Chehab mchehab+huawei@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/media/platform/coda/imx-vdoa.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/media/platform/coda/imx-vdoa.c b/drivers/media/platform/coda/imx-vdoa.c index 96ab4b61669a3..36d50c3f9b08a 100644 --- a/drivers/media/platform/coda/imx-vdoa.c +++ b/drivers/media/platform/coda/imx-vdoa.c @@ -295,7 +295,11 @@ static int vdoa_probe(struct platform_device *pdev) struct resource *res; int ret;
- dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + ret = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(32)); + if (ret) { + dev_err(&pdev->dev, "DMA enable failed\n"); + return ret; + }
vdoa = devm_kzalloc(&pdev->dev, sizeof(*vdoa), GFP_KERNEL); if (!vdoa)