diff options
Diffstat (limited to 'drivers/watchdog/stm32_iwdg.c')
| -rw-r--r-- | drivers/watchdog/stm32_iwdg.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/watchdog/stm32_iwdg.c b/drivers/watchdog/stm32_iwdg.c index 9e38f1a669..4d7a263b7e 100644 --- a/drivers/watchdog/stm32_iwdg.c +++ b/drivers/watchdog/stm32_iwdg.c @@ -157,6 +157,8 @@ static int stm32_iwdg_probe(struct device_d *dev) return ret; wd->rate = clk_get_rate(clk); + if (wd->rate == 0) + return -EINVAL; if (data->has_pclk) { clk = clk_get(dev, "pclk"); |