1 files changed, 3 insertions, 3 deletions

diff --git a/drivers/pwm/pwm-lpc32xx.c b/drivers/pwm/pwm-lpc32xx.c
index 294a68f82558..4d470c1a406a 100644
--- a/drivers/pwm/pwm-lpc32xx.c
+++ b/drivers/pwm/pwm-lpc32xx.c
@@ -41,9 +41,9 @@ static int lpc32xx_pwm_config(struct pwm_chip *chip, struct pwm_device *pwm,
         /* The highest acceptable divisor is 256, which is represented by 0 */
         period_cycles = div64_u64(c * period_ns,
                                (unsigned long long)NSEC_PER_SEC * 256);
-        if (!period_cycles)
-                period_cycles = 1;
-        if (period_cycles > 255)
+        if (!period_cycles || period_cycles > 256)
+                return -ERANGE;
+        if (period_cycles == 256)
                 period_cycles = 0;
 
         /* Compute 256 x #duty/period value and care for corner cases */