From 562e7a4032d1ff33e283d7ba1d5f10fe7ea96669 Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Mon, 20 Feb 2017 18:15:48 +0200 Subject: [PATCH] platform/x86: surface3_button: Propagate error from gpiod_count() Since gpiod_count() does not return 0 anymore, we don't need to shadow its error code and would safely propagate to the user. While here, replace second parameter by NULL in order to prevent side effects on _DSD enabled firmware. Cc: Benjamin Tissoires Signed-off-by: Andy Shevchenko Signed-off-by: Linus Walleij --- drivers/platform/x86/surface3_button.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/platform/x86/surface3_button.c b/drivers/platform/x86/surface3_button.c index 8bfd7f613d36..57f51476bb65 100644 --- a/drivers/platform/x86/surface3_button.c +++ b/drivers/platform/x86/surface3_button.c @@ -196,9 +196,10 @@ static int surface3_button_probe(struct i2c_client *client, strlen(SURFACE_BUTTON_OBJ_NAME))) return -ENODEV; - if (gpiod_count(dev, KBUILD_MODNAME) <= 0) { + error = gpiod_count(dev, NULL); + if (error < 0) { dev_dbg(dev, "no GPIO attached, ignoring...\n"); - return -ENODEV; + return error; } priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); -- 2.20.1