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Subject: media: staging/intel-ipu3: Fix memory leak in imu_fmt
Author: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
Date: Mon Mar 15 13:34:05 2021 +0100
We are losing the reference to an allocated memory if try. Change the
order of the check to avoid that.
Cc: stable@xxxxxxxxxxxxxxx
Fixes: 6d5f26f2e045 ("media: staging/intel-ipu3-v4l: reduce kernel stack usage")
Signed-off-by: Ricardo Ribalda <ribalda@xxxxxxxxxxxx>
Signed-off-by: Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@xxxxxxxxxx>
drivers/staging/media/ipu3/ipu3-v4l2.c | 11 +++++++----
1 file changed, 7 insertions(+), 4 deletions(-)
---
diff --git a/drivers/staging/media/ipu3/ipu3-v4l2.c b/drivers/staging/media/ipu3/ipu3-v4l2.c
index e8944e489c56..9e8980b34547 100644
--- a/drivers/staging/media/ipu3/ipu3-v4l2.c
+++ b/drivers/staging/media/ipu3/ipu3-v4l2.c
@@ -694,6 +694,13 @@ static int imgu_fmt(struct imgu_device *imgu, unsigned int pipe, int node,
if (inode == IMGU_NODE_STAT_3A || inode == IMGU_NODE_PARAMS)
continue;
+ /* CSS expects some format on OUT queue */
+ if (i != IPU3_CSS_QUEUE_OUT &&
+ !imgu_pipe->nodes[inode].enabled) {
+ fmts[i] = NULL;
+ continue;
+ }
+
if (try) {
fmts[i] = kmemdup(&imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp,
sizeof(struct v4l2_pix_format_mplane),
@@ -706,10 +713,6 @@ static int imgu_fmt(struct imgu_device *imgu, unsigned int pipe, int node,
fmts[i] = &imgu_pipe->nodes[inode].vdev_fmt.fmt.pix_mp;
}
- /* CSS expects some format on OUT queue */
- if (i != IPU3_CSS_QUEUE_OUT &&
- !imgu_pipe->nodes[inode].enabled)
- fmts[i] = NULL;
}
if (!try) {
