[pnfs] [PATCH 03/11] nfs41: check for null in nfs4_destroy_slot_table

[andros at netapp.com]

From: Andy Adamson <andros at netapp.com>

When nfs4_init_session fails, nfs4_put_session will call
nfs4_destroy_slot_table with a null slot pointer

Signed-off-by: Andy Adamson<andros at netapp.com>
---
 fs/nfs/nfs4proc.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index b92eaf4..fe486ea 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -4587,9 +4587,8 @@ out_free:
 /* Destroy the slot table */
 static void nfs4_destroy_slot_table(struct nfs4_channel *channel)
 {
-	/*
-	 * XXX: Need to wait for rpcs to complete
-	 */
+	if (channel->slot_table.slots == NULL)
+		return;
 	kfree(channel->slot_table.slots);
 	channel->slot_table.slots = NULL;
 	if (channel->slot_table.used_slots != &channel->slot_table._used_slots)
-- 
1.5.4.1