From 80b5184cc537718122e036afe7e62d202b70d077 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Wed, 26 May 2010 14:43:32 -0700 Subject: kernel/: convert cpu notifier to return encapsulate errno value 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 Cc: Ingo Molnar Cc: Peter Zijlstra Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/softirq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'kernel/softirq.c') diff --git a/kernel/softirq.c b/kernel/softirq.c index 0db913a5c60..825e1126008 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -808,7 +808,7 @@ static int __cpuinit cpu_callback(struct notifier_block *nfb, p = kthread_create(run_ksoftirqd, hcpu, "ksoftirqd/%d", hotcpu); if (IS_ERR(p)) { printk("ksoftirqd for %i failed\n", hotcpu); - return NOTIFY_BAD; + return notifier_from_errno(PTR_ERR(p)); } kthread_bind(p, hotcpu); per_cpu(ksoftirqd, hotcpu) = p; -- cgit v1.2.3-70-g09d2 From 9e506f7adce8e6165a104d3d78fddd8ff0cdccf8 Mon Sep 17 00:00:00 2001 From: Akinobu Mita Date: Fri, 4 Jun 2010 14:15:04 -0700 Subject: kernel/: fix BUG_ON checks for cpu notifier callbacks direct call The commit 80b5184cc537718122e036afe7e62d202b70d077 ("kernel/: convert cpu notifier to return encapsulate errno value") changed the return value of cpu notifier callbacks. Those callbacks don't return NOTIFY_BAD on failures anymore. But there are a few callbacks which are called directly at init time and checking the return value. I forgot to change BUG_ON checking by the direct callers in the commit. Signed-off-by: Akinobu Mita Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/softirq.c | 2 +- kernel/timer.c | 2 +- 2 files changed, 2 insertions(+), 2 deletions(-) (limited to 'kernel/softirq.c') diff --git a/kernel/softirq.c b/kernel/softirq.c index 825e1126008..07b4f1b1a73 100644 --- a/kernel/softirq.c +++ b/kernel/softirq.c @@ -850,7 +850,7 @@ static __init int spawn_ksoftirqd(void) void *cpu = (void *)(long)smp_processor_id(); int err = cpu_callback(&cpu_nfb, CPU_UP_PREPARE, cpu); - BUG_ON(err == NOTIFY_BAD); + BUG_ON(err != NOTIFY_OK); cpu_callback(&cpu_nfb, CPU_ONLINE, cpu); register_cpu_notifier(&cpu_nfb); return 0; diff --git a/kernel/timer.c b/kernel/timer.c index 2454172a80d..ee305c8d4e1 100644 --- a/kernel/timer.c +++ b/kernel/timer.c @@ -1717,7 +1717,7 @@ void __init init_timers(void) init_timer_stats(); - BUG_ON(err == NOTIFY_BAD); + BUG_ON(err != NOTIFY_OK); register_cpu_notifier(&timers_nb); open_softirq(TIMER_SOFTIRQ, run_timer_softirq); } -- cgit v1.2.3-70-g09d2