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hwmon: coretemp: update hotplug condition check

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Fix two errors in hotplug.  One is for hotplug notifier.  The other is
unnecessary driver unregister.  Because even none of online cpus supports
coretemp, we can't assume new onlined cpu doesn't support it either.  If
related driver is unregistered there we have no chance to use coretemp
from then on.

Signed-off-by: Chen Gong <gong.chen@linux.intel.com>
Cc: Rudolf Marek <r.marek@assembler.cz>
Cc: Huaxu Wan <huaxu.wan@intel.com>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Guenter Roeck <guenter.roeck@ericsson.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Chen Gong 2010-08-09 17:21:09 -07:00 committed by Linus Torvalds
parent 4453d7364d
commit 0dca94baea
1 changed files with 5 additions and 0 deletions
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5
drivers/hwmon/coretemp.c
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@ -502,10 +502,13 @@ static int __cpuinit coretemp_cpu_callback(struct notifier_block *nfb,
switch (action) {
case CPU_ONLINE:
case CPU_ONLINE_FROZEN:
case CPU_DOWN_FAILED:
case CPU_DOWN_FAILED_FROZEN:
coretemp_device_add(cpu);
break;
case CPU_DOWN_PREPARE:
case CPU_DOWN_PREPARE_FROZEN:
coretemp_device_remove(cpu);
break;
}
@ -566,7 +569,9 @@ static int __init coretemp_init(void)
}
mutex_unlock(&pdev_list_mutex);
exit_driver_unreg:
#ifndef CONFIG_HOTPLUG_CPU
platform_driver_unregister(&coretemp_driver);
#endif
exit:
return err;
}