diff --git a/drivers/pwm/pwm-stm32.c b/drivers/pwm/pwm-stm32.c
index dd2ee5d9ca06..9bdab6c24fba 100644
--- a/drivers/pwm/pwm-stm32.c
+++ b/drivers/pwm/pwm-stm32.c
@@ -344,6 +344,9 @@ static int stm32_pwm_config(struct stm32_pwm *priv, int ch,
 
 	prd = div;
 
+	if (!prd)
+		return -EINVAL;
+
 	if (prescaler > MAX_TIM_PSC)
 		return -EINVAL;