… > +++ b/drivers/leds/leds-lp55xx-common.c … > +ssize_t lp55xx_store_engine_load(struct device *dev, > + struct device_attribute *attr, > + const char *buf, size_t len, int nr) … > + mutex_lock(&chip->lock); > + > + chip->engine_idx = nr; > + lp55xx_load_engine(chip); > + ret = lp55xx_update_program_memory(chip, buf, len); > + > + mutex_unlock(&chip->lock); > + > + return ret; > +} … Under which circumstances would you become interested to apply a statement like “guard(mutex)(&chip->lock);”? https://elixir.bootlin.com/linux/v6.10-rc5/source/include/linux/mutex.h#L196 Regards, Markus
