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media: coda/imx-vdoa: Check for platform_get_resource() error 

platform_get_resource() may fail and in this case a NULL dereference
will occur.

Prevent this from happening by returning an error on
platform_get_resource() failure.

Fixes: b0444f18e0 ("[media] coda: add i.MX6 VDOA driver")

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
This commit is contained in:
Fabio Estevam 2017-08-16 20:14:07 -04:00 committed by Mauro Carvalho Chehab
parent d088c3107e
commit a874aabef9
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/coda/imx-vdoa.c
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@ -314,6 +314,8 @@ static int vdoa_probe(struct platform_device *pdev)
return PTR_ERR(vdoa->regs);
res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
if (!res)
return -EINVAL;
vdoa->irq = devm_request_threaded_irq(&pdev->dev, res->start, NULL,
vdoa_irq_handler, IRQF_ONESHOT,
"vdoa", vdoa);