[PATCH 5.8 106/232] gfs2: Fix refcount leak in gfs2_glock_poke

[Greg Kroah-Hartman]

From: Andreas Gruenbacher <agruenba@xxxxxxxxxx>

commit c07bfb4d8fa1ee11c6d18b093d0bb6c8832d3626 upstream.

In gfs2_glock_poke, make sure gfs2_holder_uninit is called on the local
glock holder.  Without that, we're leaking a glock and a pid reference.

Fixes: 9e8990dea926 ("gfs2: Smarter iopen glock waiting")
Cc: stable@xxxxxxxxxxxxxxx # v5.8+
Signed-off-by: Andreas Gruenbacher <agruenba@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/gfs2/glock.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/fs/gfs2/glock.c
+++ b/fs/gfs2/glock.c
@@ -790,9 +790,11 @@ static void gfs2_glock_poke(struct gfs2_
 	struct gfs2_holder gh;
 	int error;
 
-	error = gfs2_glock_nq_init(gl, LM_ST_SHARED, flags, &gh);
+	gfs2_holder_init(gl, LM_ST_SHARED, flags, &gh);
+	error = gfs2_glock_nq(&gh);
 	if (!error)
 		gfs2_glock_dq(&gh);
+	gfs2_holder_uninit(&gh);
 }
 
 static bool gfs2_try_evict(struct gfs2_glock *gl)