[PATCH linux-next] gpio: fix meaningless return expression

[zhong jiang <zhongjiang@xxxxxxxxxx>]

Fix the following sparse error:

drivers/gpio/gpio-ath79.c:54:16: error: return expression in void function

Signed-off-by: zhong jiang <zhongjiang@xxxxxxxxxx>
---
 drivers/gpio/gpio-ath79.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpio-ath79.c b/drivers/gpio/gpio-ath79.c
index 684e9d6..0a553d6 100644
--- a/drivers/gpio/gpio-ath79.c
+++ b/drivers/gpio/gpio-ath79.c
@@ -51,7 +51,7 @@ static u32 ath79_gpio_read(struct ath79_gpio_ctrl *ctrl, unsigned reg)
 static void ath79_gpio_write(struct ath79_gpio_ctrl *ctrl,
 			unsigned reg, u32 val)
 {
-	return writel(val, ctrl->base + reg);
+	writel(val, ctrl->base + reg);
 }
 
 static bool ath79_gpio_update_bits(
-- 
1.7.12.4

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