media: staging: atomisp: Remove duplicate NULL-check

GPIO framework checks for NULL pointer when gpiod_set_value() is called.
Signed-off-by: NAndy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: NSakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@s-opensource.com>

drivers/staging/media/atomisp/platform/intel-mid/atomisp_gmin_platform.c

@@ -394,7 +394,7 @@ static int gmin_gpio0_ctrl(struct v4l2_subdev *subdev, int on)
 {
 	struct gmin_subdev *gs = find_gmin_subdev(subdev);
 
-	if (gs && gs->gpio0) {
+	if (gs) {
 		gpiod_set_value(gs->gpio0, on);
 		return 0;
 	}
@@ -405,7 +405,7 @@ static int gmin_gpio1_ctrl(struct v4l2_subdev *subdev, int on)
 {
 	struct gmin_subdev *gs = find_gmin_subdev(subdev);
 
-	if (gs && gs->gpio1) {
+	if (gs) {
 		gpiod_set_value(gs->gpio1, on);
 		return 0;
 	}