From: Dan Carpenter <error27@gmail.com>
Date: Sat, 6 Mar 2010 01:04:45 +0000 (+0000)
Subject: sock.c: potential null dereference
X-Git-Tag: v2.6.34-rc2~48^2~47
X-Git-Url: https://openfabrics.org/gitweb/?a=commitdiff_plain;h=72150e9b7fec217fbd646a29ea2f65a3d4d55ea9;p=~emulex%2Finfiniband.git

sock.c: potential null dereference

We test that "prot->rsk_prot" is non-null right before we dereference it
on this line.

Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---

diff --git a/net/core/sock.c b/net/core/sock.c
index 61a65a2e045..c5812bbc2cc 100644
--- a/net/core/sock.c
+++ b/net/core/sock.c
@@ -2288,7 +2288,8 @@ out_free_request_sock_slab:
 		prot->rsk_prot->slab = NULL;
 	}
 out_free_request_sock_slab_name:
-	kfree(prot->rsk_prot->slab_name);
+	if (prot->rsk_prot)
+		kfree(prot->rsk_prot->slab_name);
 out_free_sock_slab:
 	kmem_cache_destroy(prot->slab);
 	prot->slab = NULL;