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kernel/: convert cpu notifier to return encapsulate errno value

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By the previous modification, the cpu notifier can return encapsulate
errno value.  This converts the cpu notifiers for kernel/*.c

Signed-off-by: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Akinobu Mita 2010-05-26 14:43:32 -07:00 • committed by Linus Torvalds
parent ad84bb5b98
commit 80b5184cc5
7 changed files with 17 additions and 13 deletions
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4
kernel/profile.c
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@ -372,7 +372,7 @@ static int __cpuinit profile_cpu_callback(struct notifier_block *info,
GFP_KERNEL | __GFP_ZERO,
0);
if (!page)
return NOTIFY_BAD;
return notifier_from_errno(-ENOMEM);
per_cpu(cpu_profile_hits, cpu)[1] = page_address(page);
}
if (!per_cpu(cpu_profile_hits, cpu)[0]) {
@ -388,7 +388,7 @@ out_free:
page = virt_to_page(per_cpu(cpu_profile_hits, cpu)[1]);
per_cpu(cpu_profile_hits, cpu)[1] = NULL;
__free_page(page);
return NOTIFY_BAD;
return notifier_from_errno(-ENOMEM);
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
if (prof_cpu_mask != NULL)