From: Alan Cox <alan@lxorguk.ukuu.org.uk>
Date: Fri, 29 Sep 2006 09:00:42 +0000 (-0700)
Subject: [PATCH] exit: fix crash case
X-Git-Tag: accepted/tizen/common/20141203.182822~34942
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=54306cf04c0ea0a8c432603dbc657ab62a438668;p=platform%2Fkernel%2Flinux-arm64.git

[PATCH] exit: fix crash case

If we are going to BUG() not panic() here then we should cover the case of
the BUG being compiled out

Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---

diff --git a/kernel/exit.c b/kernel/exit.c
index 3ec7b10..a51b347 100644
--- a/kernel/exit.c
+++ b/kernel/exit.c
@@ -963,7 +963,8 @@ fastcall NORET_TYPE void do_exit(long code)
 	schedule();
 	BUG();
 	/* Avoid "noreturn function does return".  */
-	for (;;) ;
+	for (;;)
+		cpu_relax();	/* For when BUG is null */
 }
 
 EXPORT_SYMBOL_GPL(do_exit);