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ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled

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erst_dbg module can not work when ERST is disabled.  So disable module
loading to provide clearer information to user.

Signed-off-by: Huang Ying <ying.huang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Huang Ying 2011-07-13 13:14:13 +08:00 committed by Len Brown
parent 4d2b2956ef
commit ca7cc5110a
1 changed files with 4 additions and 0 deletions
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4
drivers/acpi/apei/erst-dbg.c
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@ -213,6 +213,10 @@ static struct miscdevice erst_dbg_dev = {
static __init int erst_dbg_init(void)
{
if (erst_disable) {
pr_info(ERST_DBG_PFX "ERST support is disabled.\n");
return -ENODEV;
}
return misc_register(&erst_dbg_dev);
}