watchdog: Show error message when initr_watchdog() cannot start watchdog
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>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/drivers/watchdog/wdt-uclass.c b/drivers/watchdog/wdt-uclass.c
index 3f707f6..7500b3e 100644
--- a/drivers/watchdog/wdt-uclass.c
+++ b/drivers/watchdog/wdt-uclass.c
@@ -27,6 +27,7 @@
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 @@
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);