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authorLaurent Pinchart <laurent.pinchart@ideasonboard.com>2022-08-23 18:11:36 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2022-11-10 20:14:22 +0300
commitc46759e3703b9d0472e34ebf3e8d3fdde207d09c (patch)
tree6b72a2581c99b57eb35d7a397681b75b108c6a10 /drivers
parent3144ce557440b72724dfbe4075881934c900873f (diff)
downloadlinux-c46759e3703b9d0472e34ebf3e8d3fdde207d09c.tar.xz
media: rkisp1: Zero v4l2_subdev_format fields in when validating links
[ Upstream commit c53e3a049f35978a150526671587fd46b1ae7ca1 ] The local sd_fmt variable in rkisp1_capture_link_validate() has uninitialized fields, which causes random failures when calling the subdev .get_fmt() operation. Fix it by initializing the variable when declaring it, which zeros all other fields. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Paul Elder <paul.elder@ideasonboard.com> Reviewed-by: Dafna Hirschfeld <dafna@fastmail.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/staging/media/rkisp1/rkisp1-capture.c7
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/staging/media/rkisp1/rkisp1-capture.c b/drivers/staging/media/rkisp1/rkisp1-capture.c
index 0c934ca5adaa..8936f5a81680 100644
--- a/drivers/staging/media/rkisp1/rkisp1-capture.c
+++ b/drivers/staging/media/rkisp1/rkisp1-capture.c
@@ -1258,11 +1258,12 @@ static int rkisp1_capture_link_validate(struct media_link *link)
struct rkisp1_capture *cap = video_get_drvdata(vdev);
const struct rkisp1_capture_fmt_cfg *fmt =
rkisp1_find_fmt_cfg(cap, cap->pix.fmt.pixelformat);
- struct v4l2_subdev_format sd_fmt;
+ struct v4l2_subdev_format sd_fmt = {
+ .which = V4L2_SUBDEV_FORMAT_ACTIVE,
+ .pad = link->source->index,
+ };
int ret;
- sd_fmt.which = V4L2_SUBDEV_FORMAT_ACTIVE;
- sd_fmt.pad = link->source->index;
ret = v4l2_subdev_call(sd, pad, get_fmt, NULL, &sd_fmt);
if (ret)
return ret;