afs: destroy work queue on init failure

We can clean up the work queue on this error path.  This function is
called from afs_init().

Signed-off-by: Dan Carpenter <error27@gmail.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/afs/rxrpc.c b/fs/afs/rxrpc.c
index 67cf810..654d8fd 100644
--- a/fs/afs/rxrpc.c
+++ b/fs/afs/rxrpc.c
@@ -100,6 +100,7 @@
 	ret = kernel_bind(socket, (struct sockaddr *) &srx, sizeof(srx));
 	if (ret < 0) {
 		sock_release(socket);
+		destroy_workqueue(afs_async_calls);
 		_leave(" = %d [bind]", ret);
 		return ret;
 	}