Patch "dm: return correct error code in dm_resume()'s retry loop" 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

dm: return correct error code in dm_resume()'s retry loop

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:
dm-return-correct-error-code-in-dm_resume-s-retry-loop.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: Minfei Huang <[email protected]>
Date: Tue, 6 Sep 2016 16:00:29 +0800
Subject: dm: return correct error code in dm_resume()'s retry loop

From: Minfei Huang <[email protected]>

commit 8dc23658b7aaa8b6b0609c81c8ad75e98b612801 upstream.

dm_resume() will return success (0) rather than -EINVAL if !dm_suspended_md() upon retry within dm_resume().

Reset the error code at the start of dm_resume()'s retry loop. Also, remove a useless assignment at the end of dm_resume().

---
 drivers/md/dm.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

@@ -3250,10 +3250,11 @@ static int __dm_resume(struct mapped_dev
 
 int dm_resume(struct mapped_device *md)
 {
-	int r = -EINVAL;
+	int r;
 	struct dm_table *map = NULL;
 
 retry:
+	r = -EINVAL;
 	mutex_lock_nested(&md->suspend_lock, SINGLE_DEPTH_NESTING);
 
 	if (!dm_suspended_md(md))

@@ -3277,8 +3278,6 @@ retry:
 		goto out;
 
 	clear_bit(DMF_SUSPENDED, &md->flags);
-
-	r = 0;
 out:
 	mutex_unlock(&md->suspend_lock);
 

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

queue-4.4/dm-return-correct-error-code-in-dm_resume-s-retry-loop.patch