From: santosh.shilimkar@oracle.com <santosh.shilimkar@oracle.com>
Date: Tue, 25 Aug 2015 19:01:58 +0000 (-0700)
Subject: RDS: fix the dangling reference to rds_ib_incoming_slab
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=ba54d3ced958435e1802daf992cfd44c26cd4cb7;p=linux-beck.git

RDS: fix the dangling reference to rds_ib_incoming_slab

On rds_ib_frag_slab allocation failure, ensure rds_ib_incoming_slab
is not pointing to the detsroyed memory.

Signed-off-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/rds/ib_recv.c b/net/rds/ib_recv.c
index ed9b41e3b277..6bbe62060060 100644
--- a/net/rds/ib_recv.c
+++ b/net/rds/ib_recv.c
@@ -1102,9 +1102,10 @@ int rds_ib_recv_init(void)
 	rds_ib_frag_slab = kmem_cache_create("rds_ib_frag",
 					sizeof(struct rds_page_frag),
 					0, SLAB_HWCACHE_ALIGN, NULL);
-	if (!rds_ib_frag_slab)
+	if (!rds_ib_frag_slab) {
 		kmem_cache_destroy(rds_ib_incoming_slab);
-	else
+		rds_ib_incoming_slab = NULL;
+	} else
 		ret = 0;
 out:
 	return ret;