ACPI: SBS: Reset alarm bit

Alarm bit should be cleared in order for other alarms to be sent.
http://bugzilla.kernel.org/show_bug.cgi?id=9362Signed-off-by: NAlexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: NLen Brown <len.brown@intel.com>

drivers/acpi/sbshc.c

@@ -222,6 +222,7 @@ static int smbus_alarm(void *context)
 	if (!status.fields.alarm)
 		return 0;
 	mutex_lock(&hc->lock);
+	status.fields.alarm = 0;
 	smb_hc_write(hc, ACPI_SMB_STATUS, status.raw);
 	if (hc->callback)
 		acpi_os_execute(OSL_GPE_HANDLER, acpi_smbus_callback, hc);