tree 696730ef4e1bf85a24eac84713921746f74c7c10
parent 6c2d8b5dcad468cb0bdec3368b53383bde51e487
author Akinobu Mita <mita@miraclelinux.com> 1159520422 -0700
committer Linus Torvalds <torvalds@g5.osdl.org> 1159546694 -0700

[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>