Commit 43dff98b authored by Shaun Pereira's avatar Shaun Pereira Committed by David S. Miller

[X25]: fix for spinlock recurse and spinlock lockup with timer handler

When the sk_timer function x25_heartbeat_expiry() is called by the
kernel in a running/terminating process, spinlock-recursion and
spinlock-lockup locks up the kernel.  This has happened with testing
on some distro's and the patch below fixed it.
Signed-off-by: default avatarShaun Pereira <spereira@tusc.com.au>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent e0a515bc
......@@ -114,8 +114,9 @@ static void x25_heartbeat_expiry(unsigned long param)
if (sock_flag(sk, SOCK_DESTROY) ||
(sk->sk_state == TCP_LISTEN &&
sock_flag(sk, SOCK_DEAD))) {
bh_unlock_sock(sk);
x25_destroy_socket(sk);
goto unlock;
return;
}
break;
......@@ -128,7 +129,6 @@ static void x25_heartbeat_expiry(unsigned long param)
}
restart_heartbeat:
x25_start_heartbeat(sk);
unlock:
bh_unlock_sock(sk);
}
......
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