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linux-stable/drivers/watchdog
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Hector Palacios fcf95670fd watchdog: core: don't try to stop device if not running 
A watchdog device may be stopped from userspace using WDIOC_SETOPTIONS
ioctl and flag WDIOS_DISABLECARD. If the device is closed after this
operation, watchdog_release() is called and status bits checked for
stopping it. Besides, if the device has not been unregistered a critical
message "watchdog did not stop!" is printed, although the ioctl may have
successfully stopped it already.

Without the patch a user application sample code like this will successfully
stop the watchdog, but the kernel will output the message
"watchdog did not stop!":

	wd_fd = open("/dev/watchdog", O_RDWR);

	flags = WDIOS_DISABLECARD;
	ioctl(wd_fd, WDIOC_SETOPTIONS, &flags);

	close(wd_fd);

Signed-off-by: Hector Palacios <hector.palacios@digi.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
2013-07-11 21:14:39 +02:00
..
acquirewdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
advantechwdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
alim1535_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
alim7101_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
ar7_wdt.c
watchdog: Convert to devm_ioremap_resource()
2013-01-25 12:21:48 -08:00
at32ap700x_wdt.c
watchdog: at32ap700x: Remove redundant platform_set_drvdata()
2013-07-11 20:52:42 +02:00
at91rm9200_wdt.c
watchdog: at91rm9200: add DT support
2013-03-01 12:55:27 +01:00
at91sam9_wdt.c
watchdog: add timeout-sec property binding
2013-03-01 12:53:45 +01:00
at91sam9_wdt.h
ARM: at91: make watchdog drivers soc independent
2011-11-28 22:50:39 +08:00
ath79_wdt.c
drivers/watchdog: don't check resource with devm_ioremap_resource
2013-05-18 11:58:04 +02:00
bcm47xx_wdt.c
watchdog: bcm47xx_wdt.c: add hard timer
2013-03-01 12:47:31 +01:00
bcm63xx_wdt.c
watchdog: bcm63xx_wdt: use devm_ioremap_nocache()
2013-07-11 20:53:44 +02:00
bfin_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
booke_wdt.c
powerpc/watchdog: Don't enable interrupt on PPC64 BookE
2013-06-25 18:14:45 -05:00
coh901327_wdt.c
watchdog: coh901327: devicetree support
2013-05-31 11:25:52 +02:00
cpu5wdt.c
watchdog: cpu5wdt.c: add missing del_timer call
2012-12-19 22:24:41 +01:00
cpwd.c
watchdog: cpwd: use platform_{get,set}_drvdata()
2013-07-11 21:07:24 +02:00
da9052_wdt.c
watchdog: da9052: use platform_{get,set}_drvdata()
2013-07-11 21:08:01 +02:00
da9055_wdt.c
watchdog: da9055: use platform_{get,set}_drvdata()
2013-07-11 21:08:27 +02:00
davinci_wdt.c
drivers/watchdog: don't check resource with devm_ioremap_resource
2013-05-18 11:58:04 +02:00
dw_wdt.c
watchdog: dw_wdt: Staticize local symbol
2013-07-11 21:00:24 +02:00
ep93xx_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
eurotechwdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
f71808e_wdt.c
watchdog: f71808e_wdt: Add support for Jetway JNF99 motherboard
2012-07-23 12:46:38 +02:00
gef_wdt.c
watchdog: gef_wdt.c: add missing remove callback
2013-03-01 12:18:33 +01:00
geodewdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
hpwdt.c
watchdog: hpwdt.c: Increase version string
2012-12-19 22:24:40 +01:00
i6300esb.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
ib700wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
ibmasr.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
ie6xx_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
imx2_wdt.c
watchdog: imx2_wdt: use devm_clk_get()
2013-07-11 21:01:06 +02:00
indydog.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
intel_scu_watchdog.c
watchdog: Use pr_<fmt> and pr_<level>
2012-03-27 19:59:26 +02:00
intel_scu_watchdog.h
watchdog: Use pr_<fmt> and pr_<level>
2012-03-27 19:59:26 +02:00
iop_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
it87_wdt.c
watchdog: it87_wdt: Add support for IT8728F watchdog.
2012-05-23 16:24:43 +02:00
it8712f_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
iTCO_vendor_support.c
watchdog: Convert iTCO_wdt driver to mfd model
2012-05-09 17:20:09 +02:00
iTCO_vendor.h
watchdog: Convert iTCO_wdt driver to mfd model
2012-05-09 17:20:09 +02:00
iTCO_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
ixp4xx_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
jz4740_wdt.c
watchdog: jz4740: Pass device to clk_get
2013-07-11 21:12:31 +02:00
Kconfig
watchdog: Kontron PLD watchdog timer driver
2013-06-30 23:30:06 +02:00
kempld_wdt.c
watchdog: Kontron PLD watchdog timer driver
2013-06-30 23:30:06 +02:00
ks8695_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
lantiq_wdt.c
watchdog: Convert to devm_ioremap_resource()
2013-01-25 12:21:48 -08:00
m54xx_wdt.c
m68knommu: clean up ColdFire 54xx General Timer definitions
2012-09-27 23:34:03 +10:00
machzwd.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
Makefile
watchdog: Kontron PLD watchdog timer driver
2013-06-30 23:30:06 +02:00
max63xx_wdt.c
watchdog: Convert to devm_ioremap_resource()
2013-01-25 12:21:48 -08:00
mixcomwd.c
watchdog: remove use of __devinitdata
2012-11-28 12:00:24 -08:00
mpc8xxx_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
mpcore_wdt.c
watchdog: mpcore: Remove redundant platform_set_drvdata()
2013-07-11 21:09:30 +02:00
mtx-1_wdt.c
watchdog: mtx1-wdt: use devm_gpio_request_one()
2013-07-11 21:04:05 +02:00
mv64x60_wdt.c
watchdog: mv64x60_wdt: use devm_ioremap()
2013-07-11 20:54:21 +02:00
nuc900_wdt.c
watchdog: nuc900_wdt: use devm_*() functions
2013-07-11 20:54:53 +02:00
nv_tco.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
nv_tco.h
watchdog: Add TCO support for nVidia chipsets
2011-01-12 13:51:23 +00:00
octeon-wdt-main.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
octeon-wdt-nmi.S
WATCHDOG: Add watchdog driver for OCTEON SOCs
2010-08-05 13:26:22 +01:00
of_xilinx_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
omap_wdt.c
watchdog: omap_wdt: Add option nowayout
2013-03-01 12:49:02 +01:00
omap_wdt.h
watchdog: cleanup spaces before tabs
2011-03-15 16:02:27 +00:00
orion_wdt.c
watchdog: add timeout-sec property binding
2013-03-01 12:53:45 +01:00
pc87413_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
pcwd_pci.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
pcwd_usb.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
pcwd.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
pika_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
pnx833x_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
pnx4008_wdt.c
watchdog: pnx4008_wdt: use devm_clk_get()
2013-07-11 21:01:53 +02:00
rc32434_wdt.c
watchdog: rc32434_wdt: use devm_ioremap_nocache() functions
2013-07-11 20:55:28 +02:00
rdc321x_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
retu_wdt.c
watchdog: introduce retu_wdt driver
2013-03-01 12:31:14 +01:00
riowd.c
watchdog: riowd: use platform_{get,set}_drvdata()
2013-07-11 20:57:25 +02:00
s3c2410_wdt.c
watchdog: s3c2410_wdt: convert s3c2410wdt to dev_pm_ops
2013-07-11 21:06:53 +02:00
sa1100_wdt.c
ARM: sa11x0/pxa: convert OS timer registers to IOMEM
2012-07-09 17:37:35 +01:00
sb_wdog.c
watchdog: Use pr_<fmt> and pr_<level>
2012-03-27 19:59:26 +02:00
sbc60xxwdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sbc7240_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sbc8360.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sbc_epx_c3.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
sbc_fitpc2_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sc520_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
sc1200wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
sch311x_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
scx200_wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
shwdt.c
watchdog: shwdt: Remove redundant platform_set_drvdata()
2013-07-11 21:03:04 +02:00
smsc37b787_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
softdog.c
watchdog: softdog: convert to watchdog core
2012-03-27 20:07:21 +02:00
sp805_wdt.c
watchdog: sp805_wdt: use devm_clk_get()
2013-07-11 21:03:30 +02:00
sp5100_tco.c
watchdog: sp5100_tco: Remove code that may cause a boot failure
2013-03-22 23:21:47 +01:00
sp5100_tco.h
watchdog: sp5100_tco: Set the AcpiMmioSel bitmask value to 1 instead of 2
2013-03-22 23:21:55 +01:00
stmp3xxx_rtc_wdt.c
watchdog: add new driver for STMP3xxx and i.MX23/28
2013-03-01 12:44:34 +01:00
ts72xx_wdt.c
watchdog: ts72xx_wdt: use devm_*() functions
2013-07-11 20:58:02 +02:00
twl4030_wdt.c
watchdog: twl4030: Remove redundant platform_set_drvdata()
2013-07-11 21:10:13 +02:00
txx9wdt.c
watchdog: Convert to devm_ioremap_resource()
2013-01-25 12:21:48 -08:00
ux500_wdt.c
watchdog: Add support for ux500_wdt watchdog
2013-02-14 00:22:53 +01:00
via_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
w83627hf_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
w83697hf_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
w83697ug_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
w83877f_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
w83977f_wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
wafer5823wdt.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
watchdog_core.c
watchdog: core: dt: add support for the timeout-sec dt property
2013-03-01 12:48:36 +01:00
watchdog_core.h
watchdog: Add multiple device support
2012-05-30 07:54:25 +02:00
watchdog_dev.c
watchdog: core: don't try to stop device if not running
2013-07-11 21:14:39 +02:00
wd501p.h
[WATCHDOG] More coding-style and trivial clean-up
2009-03-25 09:07:04 +00:00
wdrtas.c
watchdog: nowayout is bool
2012-03-27 20:06:02 +02:00
wdt285.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
wdt977.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
wdt_pci.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
wdt.c
Disintegrate and delete asm/system.h
2012-03-28 15:58:21 -07:00
wm831x_wdt.c
watchdog: wm831x: use platform_{get,set}_drvdata()
2013-07-11 21:05:38 +02:00
wm8350_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00
xen_wdt.c
watchdog: remove use of __devexit
2012-11-28 12:00:24 -08:00