Messages in this thread Patch in this message | | | From | Huang Ying <> | Subject | [PATCH 9/9] ACPI, APEI, ERST, Prevent erst_dbg from loading if ERST is disabled | Date | Tue, 17 May 2011 16:08:39 +0800 |
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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@intel.com> --- 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); }
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