| From foo@baz Fri Mar 16 15:43:17 CET 2018 |
| From: "Gustavo A. R. Silva" <garsilva@embeddedor.com> |
| Date: Wed, 22 Nov 2017 22:34:44 -0500 |
| Subject: media: davinci: vpif_capture: add NULL check on devm_kzalloc return value |
| |
| From: "Gustavo A. R. Silva" <garsilva@embeddedor.com> |
| |
| |
| [ 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> |
| --- |
| drivers/media/platform/davinci/vpif_capture.c | 2 ++ |
| 1 file changed, 2 insertions(+) |
| |
| --- a/drivers/media/platform/davinci/vpif_capture.c |
| +++ b/drivers/media/platform/davinci/vpif_capture.c |
| @@ -1545,6 +1545,8 @@ vpif_capture_get_pdata(struct platform_d |
| 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; |
