Function wdt_start() may fail. So in initr_watchdog() function check return value of wdt_start() call and print error message when watchdog starting failed.
Signed-off-by: Pali Rohár pali@kernel.org --- drivers/watchdog/wdt-uclass.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-)
diff --git a/drivers/watchdog/wdt-uclass.c b/drivers/watchdog/wdt-uclass.c index 3f707f61f74f..7500b3ed90e3 100644 --- a/drivers/watchdog/wdt-uclass.c +++ b/drivers/watchdog/wdt-uclass.c @@ -27,6 +27,7 @@ static ulong reset_period = 1000; int initr_watchdog(void) { u32 timeout = WATCHDOG_TIMEOUT_SECS; + int ret;
/* * Init watchdog: This will call the probe function of the @@ -50,7 +51,12 @@ int initr_watchdog(void) 4 * reset_period) / 4; }
- wdt_start(gd->watchdog_dev, timeout * 1000, 0); + ret = wdt_start(gd->watchdog_dev, timeout * 1000, 0); + if (ret != 0) { + printf("WDT: Failed to start\n"); + return 0; + } + printf("WDT: Started with%s servicing (%ds timeout)\n", IS_ENABLED(CONFIG_WATCHDOG) ? "" : "out", timeout);