[PATCH] check return value of cpu_callback
commit07dccf3344010f9b9df7fe725da7e73bca2992df
authorAkinobu Mita <mita@miraclelinux.com>
Fri, 29 Sep 2006 09:00:22 +0000 (29 02:00 -0700)
committerLinus Torvalds <torvalds@g5.osdl.org>
Fri, 29 Sep 2006 16:18:14 +0000 (29 09:18 -0700)
tree696730ef4e1bf85a24eac84713921746f74c7c10
parent6c2d8b5dcad468cb0bdec3368b53383bde51e487
[PATCH] check return value of cpu_callback

Spawing ksoftirqd, migration, or watchdog, and calling init_timers_cpu()
may fail with small memory.  If it happens in initcalls, kernel NULL
pointer dereference happens later.  This patch makes crash happen
immediately in such cases.  It seems a bit better than getting kernel NULL
pointer dereference later.

Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Akinobu Mita <mita@miraclelinux.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
kernel/sched.c
kernel/softirq.c
kernel/softlockup.c
kernel/timer.c