Patch "[media] media: entity: Fix stream count check" has been added to the 4.9-stable tree

Patch "[media] media: entity: Fix stream count check" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    [media] media: entity: Fix stream count check

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     media-entity-fix-stream-count-check.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From 41387a59c8fd55975c6a26cc12fc5c9ca61fcc0f Mon Sep 17 00:00:00 2001
From: Sakari Ailus <sakari.ailus@linux.intel.com>
Date: Wed, 20 Jul 2016 08:32:49 -0300
Subject: [media] media: entity: Fix stream count check

From: Sakari Ailus <sakari.ailus@linux.intel.com>

commit 41387a59c8fd55975c6a26cc12fc5c9ca61fcc0f upstream.

There's a sanity check for the stream count remaining positive or zero on
error path, but instead of performing the check on the traversed entity it
is performed on the entity where traversal ends. Fix this.

Fixes: commit 3801bc7d1b8d ("[media] media: Media Controller fix to not let stream_count go negative")

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 drivers/media/media-entity.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/media/media-entity.c
+++ b/drivers/media/media-entity.c
@@ -468,7 +468,7 @@ error:
 
 	while ((entity_err = media_entity_graph_walk_next(graph))) {
 		/* don't let the stream_count go negative */
-		if (entity->stream_count > 0) {
+		if (entity_err->stream_count > 0) {
 			entity_err->stream_count--;
 			if (entity_err->stream_count == 0)
 				entity_err->pipe = NULL;


Patches currently in stable-queue which might be from sakari.ailus@linux.intel.com are

queue-4.9/media-entity-fix-stream-count-check.patch