This is a note to let you know that I've just added the patch titled
rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
to the 4.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
rtc-ds1374-wdt-fix-stop-start-ioctl-always-returning-einval.patch
and it can be found in the queue-4.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Thu Mar 22 14:57:32 CET 2018
From: Moritz Fischer <mdf@xxxxxxxxxx>
Date: Mon, 24 Apr 2017 15:05:12 -0700
Subject: rtc: ds1374: wdt: Fix stop/start ioctl always returning -EINVAL
From: Moritz Fischer <mdf@xxxxxxxxxx>
[ Upstream commit 538c08f4c89580fc644e2bc64e0a4b86c925da4e ]
The WDIOC_SETOPTIONS case in the watchdog ioctl would alwayss falls
through to the -EINVAL case. This is wrong since thew watchdog does
actually get stopped or started correctly.
Fixes: 920f91e50c5b ("drivers/rtc/rtc-ds1374.c: add watchdog support")
Signed-off-by: Moritz Fischer <mdf@xxxxxxxxxx>
Signed-off-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-ds1374.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -548,14 +548,15 @@ static long ds1374_wdt_ioctl(struct file
if (options & WDIOS_DISABLECARD) {
pr_info("disable watchdog\n");
ds1374_wdt_disable();
+ return 0;
}
if (options & WDIOS_ENABLECARD) {
pr_info("enable watchdog\n");
ds1374_wdt_settimeout(wdt_margin);
ds1374_wdt_ping();
+ return 0;
}
-
return -EINVAL;
}
return -ENOTTY;
Patches currently in stable-queue which might be from mdf@xxxxxxxxxx are
queue-4.4/rtc-ds1374-wdt-fix-stop-start-ioctl-always-returning-einval.patch
queue-4.4/rtc-ds1374-wdt-fix-issue-with-timeout-scaling-from-secs-to-wdt-ticks.patch