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>

diff --git a/net/rxrpc/ar-accept.c b/net/rxrpc/ar-accept.c
index 77228f28fa363240fce7da4e32d0b81bd8ea3951..2d744f22a9a1e0433363137c2aef908bf19f3508 100644 (file)
--- 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;
 }