gpio_key: fix request gpio failed issue [1/1]

PD#SWPL-11929

Problem:
request gpio failed but the probe function continued
to execute successfully.

Solution:
add return value judgment.

Verify:
test pass on g12a

Change-Id: Iab04b8440a4ecb340d98baee7b1e0df5692739e7
Signed-off-by: Yingyuan Zhu <yingyuan.zhu@amlogic.com>

diff --git a/drivers/amlogic/input/keyboard/gpio_keypad.c b/drivers/amlogic/input/keyboard/gpio_keypad.c
index 04569b76e1f54a9a702d81bd35f8185061bcf38e..6b7abfe04e9f08a4711253a103b05e47825f3c5a 100644 (file)
--- a/drivers/amlogic/input/keyboard/gpio_keypad.c
+++ b/drivers/amlogic/input/keyboard/gpio_keypad.c
@@ -183,7 +183,7 @@ static int meson_gpio_kp_probe(struct platform_device *pdev)
        for (i = 0; i < keypad->key_size; i++) {
                //get all gpio desc.
                desc = devm_gpiod_get_index(&pdev->dev, "key", i, GPIOD_IN);
-               if (!desc)
+               if (IS_ERR_OR_NULL(desc))
                        return -EINVAL;
                keypad->key[i].desc = desc;
                //The gpio default is high level.