gpio: sim: fix setting and getting multiple lines

We need to take mask into account in the set/get_multiple() callbacks.
Use bitmap_replace() instead of bitmap_copy().

Fixes: cb8c474e79be ("gpio: sim: new testing module")
Cc: stable@vger.kernel.org
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index 8e5d87984a48957d9a7c4856511a490e0978f45a..41c31b10ae8488c5a897bdced43f99afa60bf985 100644 (file)
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -134,7 +134,7 @@ static int gpio_sim_get_multiple(struct gpio_chip *gc,
        struct gpio_sim_chip *chip = gpiochip_get_data(gc);
 
        mutex_lock(&chip->lock);
-       bitmap_copy(bits, chip->value_map, gc->ngpio);
+       bitmap_replace(bits, bits, chip->value_map, mask, gc->ngpio);
        mutex_unlock(&chip->lock);
 
        return 0;
@@ -146,7 +146,7 @@ static void gpio_sim_set_multiple(struct gpio_chip *gc,
        struct gpio_sim_chip *chip = gpiochip_get_data(gc);
 
        mutex_lock(&chip->lock);
-       bitmap_copy(chip->value_map, bits, gc->ngpio);
+       bitmap_replace(chip->value_map, chip->value_map, bits, mask, gc->ngpio);
        mutex_unlock(&chip->lock);
 }