[PATCH -next] gpio: exar: Fix error return code in gpio_exar_probe()

[Wei Yongjun <weiyongjun1@xxxxxxxxxx>]

Fix to return a negative error code from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: 7ecced0934e5 ("gpio: exar: add a check for the return value of ida_simple_get fails")
Signed-off-by: Wei Yongjun <weiyongjun1@xxxxxxxxxx>
---
 drivers/gpio/gpio-exar.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-exar.c b/drivers/gpio/gpio-exar.c
index da1ef0b1c291..c5c3fa5b519f 100644
--- a/drivers/gpio/gpio-exar.c
+++ b/drivers/gpio/gpio-exar.c
@@ -148,8 +148,10 @@ 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)
+	if (index < 0) {
+		ret = index;
 		goto err_destroy;
+	}
 
 	sprintf(exar_gpio->name, "exar_gpio%d", index);
 	exar_gpio->gpio_chip.label = exar_gpio->name;