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ACPI / memhotplug: free memory device if acpi_memory_enable_device() failed

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If acpi_memory_enable_device() fails, acpi_memory_enable_device() will
return a non-zero value, which means we fail to bind the memory device to
this driver.  So we should free memory device before
acpi_memory_device_add() returns.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Reviewed-by: Yasuaki Ishimatsu <isimatu.yasuaki@jp.fujitsu.com>
Acked-by: David Rientjes <rientjes@google.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
This commit is contained in:
Wen Congyang 2012-11-16 02:08:16 +01:00 committed by Rafael J. Wysocki
parent 386e52b955
commit e0b7b24dd9
1 changed files with 3 additions and 1 deletions
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4
drivers/acpi/acpi_memhotplug.c
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@ -421,9 +421,11 @@ static int acpi_memory_device_add(struct acpi_device *device)
if (!acpi_memory_check_device(mem_device)) {
/* call add_memory func */
result = acpi_memory_enable_device(mem_device);
if (result)
if (result) {
printk(KERN_ERR PREFIX
"Error in acpi_memory_enable_device\n");
acpi_memory_device_free(mem_device);
}
}
return result;
}