The patch titled
Subject: virtio: balloon: fix missing unlock on error in fill_balloon()
has been added to the -mm tree. Its filename is
virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix.patch
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------------------------------------------------------
From: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Subject: virtio: balloon: fix missing unlock on error in fill_balloon()
Add the missing unlock before return from function fill_balloon()
in the error handling case.
Introduced by 9864a8 ("virtio_balloon: introduce migration primitives to
balloon pages").
dpatch engine is used to auto generate this patch.
(https://github.com/weiyj/dpatch)
Signed-off-by: Wei Yongjun <yongjun_wei@xxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_balloon.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff -puN drivers/virtio/virtio_balloon.c~virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix drivers/virtio/virtio_balloon.c
--- a/drivers/virtio/virtio_balloon.c~virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix
+++ a/drivers/virtio/virtio_balloon.c
@@ -152,8 +152,10 @@ static void fill_balloon(struct virtio_b
}
/* Didn't get any? Oh well. */
- if (vb->num_pfns == 0)
+ if (vb->num_pfns == 0) {
+ mutex_unlock(&vb->balloon_lock);
return;
+ }
tell_host(vb, vb->inflate_vq);
mutex_unlock(&vb->balloon_lock);
_
Patches currently in -mm which might be from yongjun_wei@xxxxxxxxxxxxxxxxx are
origin.patch
linux-next.patch
virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix.patch
virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix-fix.patch
virtio_balloon-introduce-migration-primitives-to-balloon-pages-fix-fix-fix.patch
procfs-use-kbasename-fix.patch
rtc-avoid-calling-platform_device_put-twice-in-test_init.patch
rtc-avoid-calling-platform_device_put-twice-in-test_init-fix.patch
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