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media: platform: via: Handle error for dma_set_mask

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As the potential failure of the dma_set_mask(), we fix this
bug by checking its return value and performing proper error
handling.

Signed-off-by: harperchen <harperchen1110@gmail.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
This commit is contained in:
harperchen 2023-03-03 12:16:24 +01:00 • committed by Mauro Carvalho Chehab
parent bdcd4c1043
commit 3af805f70c
1 changed files with 3 additions and 1 deletions
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4
drivers/media/platform/via/via-camera.c
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@ -1208,7 +1208,9 @@ static int viacam_probe(struct platform_device *pdev)
* Convince the system that we can do DMA. * Convince the system that we can do DMA.
*/ */
pdev->dev.dma_mask = &viadev->pdev->dma_mask; pdev->dev.dma_mask = &viadev->pdev->dma_mask;
dma_set_mask(&pdev->dev, 0xffffffff); ret = dma_set_mask(&pdev->dev, 0xffffffff);
if (ret)
goto out_ctrl_hdl_free;
/* /*
* Fire up the capture port. The write to 0x78 looks purely * Fire up the capture port. The write to 0x78 looks purely
* OLPCish; any system will need to tweak 0x1e. * OLPCish; any system will need to tweak 0x1e.