[WATCHDOG] driver-for-ibm-automatic-server-restart-watchdog-fix
Add fixed timeout comments
Cc: Andrey Panin <pazke@donpac.ru>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@osdl.org>
diff --git a/drivers/char/watchdog/ibmasr.c b/drivers/char/watchdog/ibmasr.c
index a32c073d..4f90015 100644
--- a/drivers/char/watchdog/ibmasr.c
+++ b/drivers/char/watchdog/ibmasr.c
@@ -267,7 +267,10 @@
asr_toggle();
return 0;
-
+ /*
+ * The hardware has a fixed timeout value, so WDIOC_SETTIMEOUT
+ * is a noop and WDIOC_GETTIMEOUT always returns 256.
+ */
case WDIOC_SETTIMEOUT:
if (get_user(heartbeat, p))
return -EFAULT;