Hi! > Initially the claim about no need for lock in brightness_show() > was valid as the function was just returning unchanged > LED brightness. After the addition of led_update_brightness() this
The claim was probably wrong from the day one, unless brightness is of type "atomic_t". /* Ensures consistent access to the LED Flash Class device */ struct mutex led_access; }; This should really list fields that are protected by led_access. Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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