Merge tag 'gpio-fixes-for-v5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:
 "Some more fixes from the GPIO subsystem for this release. This time
  it's only core fixes:

   - fix a memory leak in error path in gpiolib

   - clear debounce period in output mode in the character device code

   - remove shadowed variable"

* tag 'gpio-fixes-for-v5.11-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpio: gpiolib: remove shadowed variable
  gpiolib: free device name on error path to fix kmemleak
  gpiolib: cdev: clear debounce period if line set to output

Author: torvalds

drivers/gpio/gpiolib-cdev.c

@@ -776,6 +776,8 @@ static void edge_detector_stop(struct line *line)
 	cancel_delayed_work_sync(&line->work);
 	WRITE_ONCE(line->sw_debounced, 0);
 	WRITE_ONCE(line->eflags, 0);
+	if (line->desc)
+		WRITE_ONCE(line->desc->debounce_period_us, 0);
 	/* do not change line->level - see comment in debounced_value() */
 }
 

drivers/gpio/gpiolib.c

@@ -603,7 +603,11 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
 		ret = gdev->id;
 		goto err_free_gdev;
 	}
-	dev_set_name(&gdev->dev, GPIOCHIP_NAME "%d", gdev->id);
+
+	ret = dev_set_name(&gdev->dev, GPIOCHIP_NAME "%d", gdev->id);
+	if (ret)
+		goto err_free_ida;
+
 	device_initialize(&gdev->dev);
 	dev_set_drvdata(&gdev->dev, gdev);
 	if (gc->parent && gc->parent->driver)
@@ -617,7 +621,7 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
 	gdev->descs = kcalloc(gc->ngpio, sizeof(gdev->descs[0]), GFP_KERNEL);
 	if (!gdev->descs) {
 		ret = -ENOMEM;
-		goto err_free_ida;
+		goto err_free_dev_name;
 	}
 
 	if (gc->ngpio == 0) {
@@ -768,6 +772,8 @@ int gpiochip_add_data_with_key(struct gpio_chip *gc, void *data,
 	kfree_const(gdev->label);
 err_free_descs:
 	kfree(gdev->descs);
+err_free_dev_name:
+	kfree(dev_name(&gdev->dev));
 err_free_ida:
 	ida_free(&gpio_ida, gdev->id);
 err_free_gdev:
@@ -2551,7 +2557,7 @@ int gpiod_get_array_value_complex(bool raw, bool can_sleep,
 		struct gpio_chip *gc = desc_array[i]->gdev->chip;
 		unsigned long fastpath[2 * BITS_TO_LONGS(FASTPATH_NGPIO)];
 		unsigned long *mask, *bits;
-		int first, j, ret;
+		int first, j;
 
 		if (likely(gc->ngpio <= FASTPATH_NGPIO)) {
 			mask = fastpath;