1 files changed, 4 insertions, 1 deletions

diff --git a/sys/kern/kern_lockf.c b/sys/kern/kern_lockf.c
index 059d4984b020..d1417f28978a 100644
--- a/sys/kern/kern_lockf.c
+++ b/sys/kern/kern_lockf.c
@@ -467,12 +467,15 @@ lf_advlockasync(struct vop_advlockasync_args *ap, struct lockf **statep,
 	/*
 	 * Avoid the common case of unlocking when inode has no locks.
 	 */
-	if ((*statep) == NULL || LIST_EMPTY(&(*statep)->ls_active)) {
+	VI_LOCK(vp);
+	if ((*statep) == NULL) {
 		if (ap->a_op != F_SETLK) {
 			fl->l_type = F_UNLCK;
+			VI_UNLOCK(vp);
 			return (0);
 		}
 	}
+	VI_UNLOCK(vp);
 
 	/*
 	 * Map our arguments to an existing lock owner or create one