diff options
| author | Sebastian Andrzej Siewior <bigeasy@linutronix.de> | 2016-11-10 18:44:43 +0100 |
|---|---|---|
| committer | Thomas Gleixner <tglx@linutronix.de> | 2016-11-16 09:34:17 +0100 |
| commit | 7f34b935e8bf2f5304fce273a8fa98c63886d686 (patch) | |
| tree | 4c95cdb4f7f169133d1dcfe46e904149391c5525 | |
| parent | ec553abb318d75b1eafd275c71125569fa13b33b (diff) | |
x86/mcheck: Be prepared for a rollback back to the ONLINE state
If we try a CPU down and fail in the middle then we roll back to the
online state. This means we would perform CPU_ONLINE / mce_device_create()
without invoking CPU_DEAD / mce_device_remove() for the cleanup of what was
allocated in CPU_ONLINE.
Be prepared for this and don't allocate the struct if we have it
already.
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Borislav Petkov <bp@alien8.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: rt@linutronix.de
Cc: linux-edac@vger.kernel.org
Link: http://lkml.kernel.org/r/20161110174447.11848-4-bigeasy@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>