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| author |   Alexey Khoroshilov <khoroshilov@ispras.ru> | 2018-03-09 00:21:48 +0300 |
|---|---|---|
| committer |   Wim Van Sebroeck <wim@linux-watchdog.org> | 2018-03-13 19:14:18 +0100 |
| commit | 3c578cd4bc52b6e65d65be1abad9a8aa489ec207 (patch) | |
| tree | a7f1ce2eb944527c5bb8962a977f2b46caed3ea8 /drivers/watchdog | |
| parent | watchdog: aspeed: Fix translation of reset mode to ctrl register (diff) | |
| download | linux-dev-3c578cd4bc52b6e65d65be1abad9a8aa489ec207.tar.xz linux-dev-3c578cd4bc52b6e65d65be1abad9a8aa489ec207.zip | |
watchdog: sprd_wdt: Fix error handling in sprd_wdt_enable()
If clk_prepare_enable(wdt->rtc_enable) fails,
wdt->enable clock is left enabled.
Found by Linux Driver Verification project (linuxtesting.org).
Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/sprd_wdt.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/watchdog/sprd_wdt.c b/drivers/watchdog/sprd_wdt.c index a8b280ff33e0..b4d484a42b70 100644 --- a/drivers/watchdog/sprd_wdt.c +++ b/drivers/watchdog/sprd_wdt.c @@ -154,8 +154,10 @@ static int sprd_wdt_enable(struct sprd_wdt *wdt) if (ret) return ret; ret = clk_prepare_enable(wdt->rtc_enable); - if (ret) + if (ret) { + clk_disable_unprepare(wdt->enable); return ret; + } sprd_wdt_unlock(wdt->base); val = readl_relaxed(wdt->base + SPRD_WDT_CTRL); |