gpiolib: Drop cargo-culted comment
This comment about the gpio_lock is just completely confusing and
misleading. This refers to a gpio_desc that would in 2008 be used
to hold the list of gpio_chips, but nowadays gpio_desc refers to
descriptors of individual GPIO lines and this comment is completely
unparseable. Delete it.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/gpio/gpiolib.c b/drivers/gpio/gpiolib.c
index 4c93cf7..5da6e957 100644
--- a/drivers/gpio/gpiolib.c
+++ b/drivers/gpio/gpiolib.c
@@ -75,10 +75,6 @@ static struct bus_type gpio_bus_type = {
*/
#define FASTPATH_NGPIO CONFIG_GPIOLIB_FASTPATH_LIMIT
-/* gpio_lock prevents conflicts during gpio_desc[] table updates.
- * While any GPIO is requested, its gpio_chip is not removable;
- * each GPIO's "requested" flag serves as a lock and refcount.
- */
DEFINE_SPINLOCK(gpio_lock);
static DEFINE_MUTEX(gpio_lookup_lock);
