[PATCH] check return value of cpu_callback

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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>

...

This commit is contained in:

Akinobu Mita 2006-09-29 02:00:22 -07:00 • committed by Linus Torvalds

parent 6c2d8b5dca

commit 07dccf3344

4 changed files with 11 additions and 4 deletions

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4

kernel/sched.c

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4

kernel/softirq.c

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3

kernel/softlockup.c

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4

kernel/timer.c

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