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* [PATCH AUTOSEL 4.19 335/671] watchdog: rtd119x_wdt: Fix remove function
       [not found] <20200116170509.12787-1-sashal@kernel.org>
@ 2020-01-16 16:59 ` Sasha Levin
  2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 651/671] watchdog: sprd: Fix the incorrect pointer getting from driver data Sasha Levin
  1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2020-01-16 16:59 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Guenter Roeck, Andreas Färber, Wim Van Sebroeck,
	Sasha Levin, linux-watchdog

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 8dd29f19512cc75ee470d7bb8ec86af199de23a8 ]

The driver registers the watchdog with devm_watchdog_register_device() but
still calls watchdog_unregister_device() on remove. Since clocks have to
be stopped when removing the driver, after the watchdog device has been
unregistered, we can not drop the call to watchdog_unregister_device().
Use watchdog_register_device() to register the watchdog.

Fixes: 2bdf6acbfead7 ("watchdog: Add Realtek RTD1295")
Cc: Andreas Färber <afaerber@suse.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/rtd119x_wdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/rtd119x_wdt.c b/drivers/watchdog/rtd119x_wdt.c
index d001c17ddfde..99caec6882d2 100644
--- a/drivers/watchdog/rtd119x_wdt.c
+++ b/drivers/watchdog/rtd119x_wdt.c
@@ -135,7 +135,7 @@ static int rtd119x_wdt_probe(struct platform_device *pdev)
 	rtd119x_wdt_set_timeout(&data->wdt_dev, data->wdt_dev.timeout);
 	rtd119x_wdt_stop(&data->wdt_dev);
 
-	ret = devm_watchdog_register_device(&pdev->dev, &data->wdt_dev);
+	ret = watchdog_register_device(&data->wdt_dev);
 	if (ret) {
 		clk_disable_unprepare(data->clk);
 		clk_put(data->clk);
-- 
2.20.1


^ permalink raw reply	[flat|nested] 2+ messages in thread

* [PATCH AUTOSEL 4.19 651/671] watchdog: sprd: Fix the incorrect pointer getting from driver data
       [not found] <20200116170509.12787-1-sashal@kernel.org>
  2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 335/671] watchdog: rtd119x_wdt: Fix remove function Sasha Levin
@ 2020-01-16 17:04 ` Sasha Levin
  1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2020-01-16 17:04 UTC (permalink / raw)
  To: linux-kernel, stable
  Cc: Shuiqing Li, Dongwei Wang, Baolin Wang, Guenter Roeck,
	Wim Van Sebroeck, Sasha Levin, linux-watchdog

From: Shuiqing Li <shuiqing.li@unisoc.com>

[ Upstream commit 39e68d9e7ab276880980ee5386301fb218202192 ]

The device driver data saved the 'struct sprd_wdt' object, it is
incorrect to get 'struct watchdog_device' object from the driver
data, thus fix it.

Fixes: 477603467009 ("watchdog: Add Spreadtrum watchdog driver")
Reported-by: Dongwei Wang <dongwei.wang@unisoc.com>
Signed-off-by: Shuiqing Li <shuiqing.li@unisoc.com>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/76d4687189ec940baa90cb8d679a8d4c8f02ee80.1573210405.git.baolin.wang@linaro.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/watchdog/sprd_wdt.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/watchdog/sprd_wdt.c b/drivers/watchdog/sprd_wdt.c
index ff9397d9638a..b6c65afd3677 100644
--- a/drivers/watchdog/sprd_wdt.c
+++ b/drivers/watchdog/sprd_wdt.c
@@ -342,10 +342,9 @@ static int sprd_wdt_probe(struct platform_device *pdev)
 
 static int __maybe_unused sprd_wdt_pm_suspend(struct device *dev)
 {
-	struct watchdog_device *wdd = dev_get_drvdata(dev);
 	struct sprd_wdt *wdt = dev_get_drvdata(dev);
 
-	if (watchdog_active(wdd))
+	if (watchdog_active(&wdt->wdd))
 		sprd_wdt_stop(&wdt->wdd);
 	sprd_wdt_disable(wdt);
 
@@ -354,7 +353,6 @@ static int __maybe_unused sprd_wdt_pm_suspend(struct device *dev)
 
 static int __maybe_unused sprd_wdt_pm_resume(struct device *dev)
 {
-	struct watchdog_device *wdd = dev_get_drvdata(dev);
 	struct sprd_wdt *wdt = dev_get_drvdata(dev);
 	int ret;
 
@@ -362,7 +360,7 @@ static int __maybe_unused sprd_wdt_pm_resume(struct device *dev)
 	if (ret)
 		return ret;
 
-	if (watchdog_active(wdd)) {
+	if (watchdog_active(&wdt->wdd)) {
 		ret = sprd_wdt_start(&wdt->wdd);
 		if (ret) {
 			sprd_wdt_disable(wdt);
-- 
2.20.1


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2020-01-16 16:59 ` [PATCH AUTOSEL 4.19 335/671] watchdog: rtd119x_wdt: Fix remove function Sasha Levin
2020-01-16 17:04 ` [PATCH AUTOSEL 4.19 651/671] watchdog: sprd: Fix the incorrect pointer getting from driver data Sasha Levin

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