[Cluster-devel] [PATCH] gfs2: Lock imbalance on error path in gfs2_recover_one

[Andreas Gruenbacher]

In gfs2_recover_one, fix a sd_log_flush_lock imbalance when a recovery
pass fails.

Fixes: c9ebc4b73799 ("gfs2: allow journal replay to hold sd_log_flush_lock")
Cc: stable at vger.kernel.org # v5.7+
Signed-off-by: Andreas Gruenbacher <agruenba at redhat.com>
---
 fs/gfs2/recovery.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/gfs2/recovery.c b/fs/gfs2/recovery.c
index a3eae2c76b70..f15f9b86e8a7 100644
--- a/fs/gfs2/recovery.c
+++ b/fs/gfs2/recovery.c
@@ -511,8 +511,10 @@ static void gfs2_recover_one(struct gfs2_jdesc *jd)
 			error = foreach_descriptor(jd, head.lh_tail,
 						   head.lh_blkno, pass);
 			lops_after_scan(jd, error, pass);
-			if (error)
+			if (error) {
+				up_read(&sdp->sd_log_flush_lock);
 				goto fail_gunlock_thaw;
+			}
 		}
 
 		recover_local_statfs(jd, &head);
-- 
2.26.2