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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2017-02-20 18:15:48 +0200
committerLinus Walleij <linus.walleij@linaro.org>2017-03-16 21:52:12 +0100
commit562e7a4032d1ff33e283d7ba1d5f10fe7ea96669 (patch)
treec501dfe72d90e884c9d6eb5128c5d4f3e6113c6c /drivers/platform
parent4033d4a4f5236b01200010bf38928347af75d86e (diff)
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 <benjamin.tissoires@redhat.com> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/platform')
-rw-r--r--drivers/platform/x86/surface3_button.c5
1 files 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);