diff options
| author | Ben Dooks <ben.dooks@codethink.co.uk> | 2023-11-22 08:51:18 +0000 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@linux-watchdog.org> | 2023-12-17 16:14:24 +0100 |
| commit | f77999887235f8c378af343df11a6bcedda5b284 (patch) | |
| tree | 6170b5dfe7f780e5bf16e8380a678d4adc3af437 /drivers/watchdog | |
| parent | 137c9e08e5e542d58aa606b0bb4f0990117309a0 (diff) | |
| download | linux-f77999887235f8c378af343df11a6bcedda5b284.tar.gz | |
watchdog: starfive: add lock annotations to fix context imbalances
Add the necessary __acquires() and __releases() to the functions
that take and release the wdt lock to avoid the following sparse
warnings:
drivers/watchdog/starfive-wdt.c:204:13: warning: context imbalance in 'starfive_wdt_unlock' - wrong count at exit
drivers/watchdog/starfive-wdt.c:212:9: warning: context imbalance in 'starfive_wdt_lock' - unexpected unlock
Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20231122085118.177589-1-ben.dooks@codethink.co.uk
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Diffstat (limited to 'drivers/watchdog')
| -rw-r--r-- | drivers/watchdog/starfive-wdt.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/watchdog/starfive-wdt.c b/drivers/watchdog/starfive-wdt.c index 16df92837c5d3..e28ead24c520e 100644 --- a/drivers/watchdog/starfive-wdt.c +++ b/drivers/watchdog/starfive-wdt.c @@ -202,12 +202,14 @@ static u32 starfive_wdt_ticks_to_sec(struct starfive_wdt *wdt, u32 ticks) /* Write unlock-key to unlock. Write other value to lock. */ static void starfive_wdt_unlock(struct starfive_wdt *wdt) + __acquires(&wdt->lock) { spin_lock(&wdt->lock); writel(wdt->variant->unlock_key, wdt->base + wdt->variant->unlock); } static void starfive_wdt_lock(struct starfive_wdt *wdt) + __releases(&wdt->lock) { writel(~wdt->variant->unlock_key, wdt->base + wdt->variant->unlock); spin_unlock(&wdt->lock); |