[PATCH 1/3] blk-iolatency: fix blkg leak in timer_fn

[Josef Bacik]

At this point we have a ref on the blkg, we need to drop it if we don't
have a iolat.

Signed-off-by: Josef Bacik <jo...@toxicpanda.com>
---
 block/blk-iolatency.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/block/blk-iolatency.c b/block/blk-iolatency.c
index bb59b2929e0d..b0dc4fc64b3e 100644
--- a/block/blk-iolatency.c
+++ b/block/blk-iolatency.c
@@ -627,7 +627,7 @@ static void blkiolatency_timer_fn(struct timer_list *t)
 
                iolat = blkg_to_lat(blkg);
                if (!iolat)
-                       continue;
+                       goto next;
 
                lat_info = &iolat->child_lat;
                cookie = atomic_read(&lat_info->scale_cookie);
-- 
2.14.3