From aa70c0bba081b7a56a3894c5454a78b27753bdff Mon Sep 17 00:00:00 2001
From: Anand Avati <avati@redhat.com>
Date: Sun, 21 Jul 2013 00:43:18 -0700
Subject: gfapi: handle failures in graph switches

A graph switch failure can potentially result in NULL returned
for glfs_active_subvol(). Handle this gracefully in glfs_subvol_done()

Change-Id: I6adbd878c354b9ed2314fc71cea4671792efa0a4
BUG: 953694
Signed-off-by: Anand Avati <avati@redhat.com>
Reviewed-on: http://review.gluster.org/5407
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
---
 api/src/glfs-resolve.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/api/src/glfs-resolve.c b/api/src/glfs-resolve.c
index 4a634df6e..beb270322 100644
--- a/api/src/glfs-resolve.c
+++ b/api/src/glfs-resolve.c
@@ -797,6 +797,9 @@ glfs_subvol_done (struct glfs *fs, xlator_t *subvol)
 	int ref = 0;
 	xlator_t *active_subvol = NULL;
 
+	if (!subvol)
+		return;
+
 	glfs_lock (fs);
 	{
 		ref = (--subvol->winds);
-- 
cgit