Merge branch 'stable-4.7' of git://git.infradead.org/users/pcmoore/audit

[linux-2.6-block.git] / drivers / pwm / core.c

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index dba3843c53b8d2162d10100d2473be79014d4b4b..ed337a8c34ab4bb231814136fe5cd9628962eff1 100644 (file)
--- a/drivers/pwm/core.c
+++ b/drivers/pwm/core.c
@@ -457,7 +457,8 @@ int pwm_apply_state(struct pwm_device *pwm, struct pwm_state *state)
 {
        int err;
 
-       if (!pwm)
+       if (!pwm || !state || !state->period ||
+           state->duty_cycle > state->period)
                return -EINVAL;
 
        if (!memcmp(state, &pwm->state, sizeof(*state)))