[PATCH 9/9] ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



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

Signed-off-by: Huang Ying <ying.huang@xxxxxxxxx>
---
 drivers/acpi/apei/erst-dbg.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/acpi/apei/erst-dbg.c
+++ b/drivers/acpi/apei/erst-dbg.c
@@ -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);
 }
 
--
To unsubscribe from this list: send the line "unsubscribe linux-acpi" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html


[Index of Archives]     [Linux IBM ACPI]     [Linux Power Management]     [Linux Kernel]     [Linux Laptop]     [Kernel Newbies]     [Share Photos]     [Security]     [Netfilter]     [Bugtraq]     [Yosemite News]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Samba]     [Video 4 Linux]     [Device Mapper]     [Linux Resources]

  Powered by Linux