Patch "mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'" has been added to the 4.14-stable tree

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

mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'

to the 4.14-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:
mm-frame_vector.c-release-a-semaphore-in-get_vaddr_frames.patch
and it can be found in the queue-4.14 subdirectory.

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

From: Christophe JAILLET <[email protected]>
Date: Thu, 14 Dec 2017 15:33:08 -0800
Subject: mm/frame_vector.c: release a semaphore in 'get_vaddr_frames()'

From: Christophe JAILLET <[email protected]>

[ Upstream commit 1f704fd0d14043e76e80f6b8b2251b9b2cedcca6 ]

A semaphore is acquired before this check, so we must release it before leaving.

---
 mm/frame_vector.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

@@ -62,8 +62,10 @@ int get_vaddr_frames(unsigned long start
 	 * get_user_pages_longterm() and disallow it for filesystem-dax
 	 * mappings.
 	 */
-	if (vma_is_fsdax(vma))
-		return -EOPNOTSUPP;
+	if (vma_is_fsdax(vma)) {
+		ret = -EOPNOTSUPP;
+		goto out;
+	}
 
 	if (!(vma->vm_flags & (VM_IO | VM_PFNMAP))) {
 		vec->got_ref = true;

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

queue-4.14/mdio-sun4i-fix-a-memory-leak.patch queue-4.14/mm-frame_vector.c-release-a-semaphore-in-get_vaddr_frames.patch