From a874aabef9337f26c589858e7ea0ec6a6adbb129 Mon Sep 17 00:00:00 2001
From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Wed, 16 Aug 2017 20:14:07 -0400
Subject: [PATCH] media: coda/imx-vdoa: Check for platform_get_resource() error
Git-commit: a874aabef9337f26c589858e7ea0ec6a6adbb129
Patch-mainline: v4.14-rc1
References: bsc#1051510
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: b0444f18e0b18abce ("[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>
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/media/platform/coda/imx-vdoa.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/media/platform/coda/imx-vdoa.c b/drivers/media/platform/coda/imx-vdoa.c
index df9b71621420..8eb3e0c05473 100644
--- a/drivers/media/platform/coda/imx-vdoa.c
+++ b/drivers/media/platform/coda/imx-vdoa.c
@@ -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);
--
2.18.0