[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 3ec7b10eae38eba9e657923bcaf0abdeaaf74062..a51b347ae67be88911e9275c2d044f5318bc5acd 100644 (file)
--- 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);