rxrpc: Check allocation failure.

alloc_skb() can return NULL.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 0 deletions

diff --git a/net/rxrpc/ar-accept.c b/net/rxrpc/ar-accept.c
index 77228f28fa36..2d744f22a9a1 100644
--- a/net/rxrpc/ar-accept.c
+++ b/net/rxrpc/ar-accept.c
@@ -88,6 +88,11 @@ static int rxrpc_accept_incoming_call(struct rxrpc_local *local,
 
         /* get a notification message to send to the server app */
         notification = alloc_skb(0, GFP_NOFS);
+        if (!notification) {
+                _debug("no memory");
+                ret = -ENOMEM;
+                goto error_nofree;
+        }
         rxrpc_new_skb(notification);
         notification->mark = RXRPC_SKB_MARK_NEW_CALL;
 
@@ -189,6 +194,7 @@ invalid_service:
         ret = -ECONNREFUSED;
 error:
         rxrpc_free_skb(notification);
+error_nofree:
         _leave(" = %d", ret);
         return ret;
 }