Two of the x25 ioctl cases have error paths that break out of the function without
unlocking the socket, leading to this warning:


================================================
[ BUG: lock held when returning to user space! ]
3.10.0-rc7+ #36 Not tainted
------------------------------------------------
trinity-child2/31407 is leaving the kernel with locks still held!
1 lock held by trinity-child2/31407:
 #0:  (sk_lock-AF_X25){+.+.+.}, at: [<ffffffffa024b6da>] x25_ioctl+0x8a/0x740 [x25]

Signed-off-by: Dave Jones <redacted>

diff --git a/net/x25/af_x25.c b/net/x25/af_x25.c
index 37ca969..2c1e633 100644
--- a/net/x25/af_x25.c
+++ b/net/x25/af_x25.c

@@ -1584,10 +1584,11 @@ out_cud_release:
 		rc = -EINVAL;
 		lock_sock(sk);
 		if (sk->sk_state != TCP_CLOSE)
-			break;
+			goto out_callaccpt_release;
 		clear_bit(X25_ACCPT_APPRV_FLAG, &x25->flags);
-		release_sock(sk);
 		rc = 0;
+out_callaccpt_release:
+		release_sock(sk);
 		break;
 	}