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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-17 22:54:51 +0300 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-07-17 22:54:51 +0300 |
| commit | 31ba04d99a71e7867a27c521a8cb09a4f707ccd2 (patch) | |
| tree | 1125771899d0b1924ab4f7f0393a3de8a1fb3b74 | |
| parent | 338a57d5cb034172d28de34bd7d122bfcd90bff2 (diff) | |
| parent | dea1d0f5f1284e3defee4b8484d9fc230686cd42 (diff) | |
| download | linux-31ba04d99a71e7867a27c521a8cb09a4f707ccd2.tar.xz | |
Merge branch 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP fix from Thomas Gleixner:
"Replace the bogus BUG_ON in the cpu hotplug code"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
smp/hotplug: Replace BUG_ON and react useful
| -rw-r--r-- | kernel/cpu.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/kernel/cpu.c b/kernel/cpu.c index ab860453841d..eee033134262 100644 --- a/kernel/cpu.c +++ b/kernel/cpu.c @@ -279,7 +279,8 @@ static int bringup_wait_for_ap(unsigned int cpu) /* Wait for the CPU to reach CPUHP_AP_ONLINE_IDLE */ wait_for_completion(&st->done); - BUG_ON(!cpu_online(cpu)); + if (WARN_ON_ONCE((!cpu_online(cpu)))) + return -ECANCELED; /* Unpark the stopper thread and the hotplug thread of the target cpu */ stop_machine_unpark(cpu); |