pwm: Add might_sleep() annotations for !CONFIG_PWM API functions

The normal implementations of these functions make use of mutexes. To
make it obvious that these functions might sleep also add annotations to
the dummy implementations in the !CONFIG_PWM case.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

diff --git a/include/linux/pwm.h b/include/linux/pwm.h
index 725c9b784e609df74935762527e8fa38892d16f2..515e33978e97b57cf92e45af180a720ba1d4dd48 100644 (file)
--- a/include/linux/pwm.h
+++ b/include/linux/pwm.h
@@ -429,11 +429,13 @@ struct pwm_device *devm_fwnode_pwm_get(struct device *dev,
 #else
 static inline struct pwm_device *pwm_request(int pwm_id, const char *label)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
 static inline void pwm_free(struct pwm_device *pwm)
 {
+       might_sleep();
 }
 
 static inline int pwm_apply_state(struct pwm_device *pwm,
@@ -493,12 +495,14 @@ static inline struct pwm_device *pwm_request_from_chip(struct pwm_chip *chip,
                                                       unsigned int index,
                                                       const char *label)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
 static inline struct pwm_device *pwm_get(struct device *dev,
                                         const char *consumer)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
@@ -506,16 +510,19 @@ static inline struct pwm_device *of_pwm_get(struct device *dev,
                                            struct device_node *np,
                                            const char *con_id)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
 static inline void pwm_put(struct pwm_device *pwm)
 {
+       might_sleep();
 }
 
 static inline struct pwm_device *devm_pwm_get(struct device *dev,
                                              const char *consumer)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
@@ -523,6 +530,7 @@ static inline struct pwm_device *devm_of_pwm_get(struct device *dev,
                                                 struct device_node *np,
                                                 const char *con_id)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 
@@ -530,6 +538,7 @@ static inline struct pwm_device *
 devm_fwnode_pwm_get(struct device *dev, struct fwnode_handle *fwnode,
                    const char *con_id)
 {
+       might_sleep();
        return ERR_PTR(-ENODEV);
 }
 #endif