Commit 7ecced09 authored Mar 08, 2019 by Kangjie Lu Committed by Bartosz Golaszewski Mar 22, 2019

gpio: exar: add a check for the return value of ida_simple_get fails



ida_simple_get may fail and return a negative error number.
The fix checks its return value; if it fails, go to err_destroy.

Cc: <stable@vger.kernel.org>
Signed-off-by: Kangjie Lu <kjlu@umn.edu>
Signed-off-by: Bartosz Golaszewski <bgolaszewski@baylibre.com>

parent 9e98c678

drivers/gpio/gpio-exar.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -148,6 +148,8 @@ static int gpio_exar_probe(struct platform_device *pdev)
		mutex_init(&exar_gpio->lock);

		index = ida_simple_get(&ida_index, 0, 0, GFP_KERNEL);
		if (index < 0)
		goto err_destroy;

		sprintf(exar_gpio->name, "exar_gpio%d", index);
		exar_gpio->gpio_chip.label = exar_gpio->name;