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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>
This commit is contained in:
Uwe Kleine-König 2021-09-09 11:48:48 +02:00 committed by Thierry Reding
parent 6f897a1085
commit 27d9a4d694
1 changed files with 9 additions and 0 deletions
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9
include/linux/pwm.h
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@ -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