Merge 4.7-rc4 into staging-next

We want the fixes in here, and we can resolve a merge issue in
drivers/iio/industrialio-trigger.c

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

3 files changed, 4 insertions, 3 deletions

diff --git a/drivers/pwm/core.c b/drivers/pwm/core.c
index dba3843c53b8..ed337a8c34ab 100644
--- 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)))
diff --git a/drivers/pwm/pwm-atmel-hlcdc.c b/drivers/pwm/pwm-atmel-hlcdc.c
index f994c7eaf41c..14fc011faa32 100644
--- a/drivers/pwm/pwm-atmel-hlcdc.c
+++ b/drivers/pwm/pwm-atmel-hlcdc.c
@@ -272,7 +272,7 @@ static int atmel_hlcdc_pwm_probe(struct platform_device *pdev)
         chip->chip.of_pwm_n_cells = 3;
         chip->chip.can_sleep = 1;
 
-        ret = pwmchip_add(&chip->chip);
+        ret = pwmchip_add_with_polarity(&chip->chip, PWM_POLARITY_INVERSED);
         if (ret) {
                 clk_disable_unprepare(hlcdc->periph_clk);
                 return ret;
diff --git a/drivers/pwm/sysfs.c b/drivers/pwm/sysfs.c
index d98599249a05..01695d48dd54 100644
--- a/drivers/pwm/sysfs.c
+++ b/drivers/pwm/sysfs.c
@@ -152,7 +152,7 @@ static ssize_t enable_store(struct device *child,
                 goto unlock;
         }
 
-        pwm_apply_state(pwm, &state);
+        ret = pwm_apply_state(pwm, &state);
 
 unlock:
         mutex_unlock(&export->lock);