diff --git a/fs/gfs2/quota.c b/fs/gfs2/quota.c
index 171b2713d2e5..1dba7e29b9c3 100644
--- a/fs/gfs2/quota.c
+++ b/fs/gfs2/quota.c
@@ -112,6 +112,8 @@ static void gfs2_qd_dealloc(struct rcu_head *rcu)
 	struct gfs2_sbd *sdp = qd->qd_sbd;
 
 	kmem_cache_free(gfs2_quotad_cachep, qd);
+	if (IS_ERR_OR_NULL(sdp))
+		return;
 	if (atomic_dec_and_test(&sdp->sd_quota_count))
 		wake_up(&sdp->sd_kill_wait);
 }