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media: davinci: vpif_capture: add NULL check on devm_kzalloc return value

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[ Upstream commit 5a18c2434f8bfc8bc2fb0f8af3e44f7408d63e4f ]

Check return value from call to devm_kzalloc() in order to prevent
a NULL pointer dereference.

This issue was detected with the help of Coccinelle.

Fixes: 4a5f8ae50b66 ("[media] davinci: vpif_capture: get subdevs from DT when available")

Signed-off-by: Gustavo A. R. Silva <garsilva@embeddedor.com>
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Gustavo A. R. Silva 2017-11-22 22:34:44 -05:00 committed by Greg Kroah-Hartman
parent b6b70d7033
commit 623f218586
1 changed files with 2 additions and 0 deletions
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2
drivers/media/platform/davinci/vpif_capture.c
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@ -1545,6 +1545,8 @@ vpif_capture_get_pdata(struct platform_device *pdev)
sizeof(*chan->inputs) *
VPIF_CAPTURE_NUM_CHANNELS,
GFP_KERNEL);
if (!chan->inputs)
return NULL;
chan->input_count++;
chan->inputs[i].input.type = V4L2_INPUT_TYPE_CAMERA;