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authorGustavo A. R. Silva <garsilva@embeddedor.com>2017-11-22 22:34:44 -0500
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-03-19 09:09:58 +0100
commit33964687ffd1bcfc21e9e3479f6ec3b654bb96fe (patch)
treeacd4eb17d5c682442d08c357fa381e5b04e59038
parent1ed91b10c4e40f433c0038652831197a87d45de2 (diff)
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media: davinci: vpif_capture: add NULL check on devm_kzalloc return value
[ 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>
-rw-r--r--drivers/media/platform/davinci/vpif_capture.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/media/platform/davinci/vpif_capture.c b/drivers/media/platform/davinci/vpif_capture.c
index fca4dc829f73..e45916f69def 100644
--- a/drivers/media/platform/davinci/vpif_capture.c
+++ b/drivers/media/platform/davinci/vpif_capture.c
@@ -1550,6 +1550,8 @@ 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;