gpio: cdev: don't report GPIOs requested as interrupts as used

GPIOs used as shared irqs can still be requested by user-space (or
kernel drivers for that matter) yet we report them as used over the
chardev ABI. Drop the test for FLAG_USED_AS_IRQ from
gpio_desc_to_lineinfo().

Reviewed-by: Kent Gibson <[email protected]>
Reviewed-by: Linus Walleij <[email protected]>
Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Bartosz Golaszewski <[email protected]>

Author: Bartosz Golaszewski

drivers/gpio/gpiolib-cdev.c

@@ -2275,7 +2275,6 @@ static void gpio_desc_to_lineinfo(struct gpio_desc *desc,
 	 */
 	if (test_bit(FLAG_REQUESTED, &dflags) ||
 	    test_bit(FLAG_IS_HOGGED, &dflags) ||
-	    test_bit(FLAG_USED_AS_IRQ, &dflags) ||
 	    test_bit(FLAG_EXPORT, &dflags) ||
 	    test_bit(FLAG_SYSFS, &dflags) ||
 	    !gpiochip_line_is_valid(guard.gc, info->offset)) {