Patch "bcache: fix a leak in bch_cached_dev_run()" has been added to the 4.4-stable tree

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

bcache: fix a leak in bch_cached_dev_run()

to the 4.4-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:
bcache-fix-a-leak-in-bch_cached_dev_run.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

From: Al Viro <[email protected]>
Date: Sun, 29 Nov 2015 17:20:59 -0800
Subject: bcache: fix a leak in bch_cached_dev_run()

From: Al Viro <[email protected]>

commit 4d4d8573a8451acc9f01cbea24b7e55f04a252fe upstream.

---
 drivers/md/bcache/super.c |    5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

@@ -849,8 +849,11 @@ void bch_cached_dev_run(struct cached_de
 	buf[SB_LABEL_SIZE] = '\0';
 	env[2] = kasprintf(GFP_KERNEL, "CACHED_LABEL=%s", buf);
 
-	if (atomic_xchg(&dc->running, 1))
+	if (atomic_xchg(&dc->running, 1)) {
+		kfree(env[1]);
+		kfree(env[2]);
 		return;
+	}
 
 	if (!d->c &&
 	    BDEV_STATE(&dc->sb) != BDEV_STATE_NONE) {

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/bcache-fix-a-leak-in-bch_cached_dev_run.patch