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watchdog: sprd: Fix the incorrect pointer getting from driver data
commit39e68d9e7a
upstream. 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:4776034670
("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: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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parent
583bee0460
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1 changed files with 2 additions and 4 deletions
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@ -342,10 +342,9 @@ static int sprd_wdt_probe(struct platform_device *pdev)
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static int __maybe_unused sprd_wdt_pm_suspend(struct device *dev)
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{
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struct watchdog_device *wdd = dev_get_drvdata(dev);
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struct sprd_wdt *wdt = dev_get_drvdata(dev);
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if (watchdog_active(wdd))
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if (watchdog_active(&wdt->wdd))
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sprd_wdt_stop(&wdt->wdd);
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sprd_wdt_disable(wdt);
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@ -354,7 +353,6 @@ static int __maybe_unused sprd_wdt_pm_suspend(struct device *dev)
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static int __maybe_unused sprd_wdt_pm_resume(struct device *dev)
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{
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struct watchdog_device *wdd = dev_get_drvdata(dev);
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struct sprd_wdt *wdt = dev_get_drvdata(dev);
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int ret;
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@ -362,7 +360,7 @@ static int __maybe_unused sprd_wdt_pm_resume(struct device *dev)
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if (ret)
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return ret;
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if (watchdog_active(wdd)) {
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if (watchdog_active(&wdt->wdd)) {
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ret = sprd_wdt_start(&wdt->wdd);
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if (ret) {
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sprd_wdt_disable(wdt);
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