Input: soc_button_array - use gpio_is_valid()

gpio_keys will later use gpio_is_valid(). To match the actual
behavior, we should use it here too.

Signed-off-by: Benjamin Tissoires <benjamin.tissoires@redhat.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

diff --git a/drivers/input/misc/soc_button_array.c b/drivers/input/misc/soc_button_array.c
index c14b827..bbd433c 100644 (file)
--- a/drivers/input/misc/soc_button_array.c
+++ b/drivers/input/misc/soc_button_array.c
@@ -17,6 +17,7 @@
 #include <linux/acpi.h>
 #include <linux/gpio/consumer.h>
 #include <linux/gpio_keys.h>
+#include <linux/gpio.h>
 #include <linux/platform_device.h>
 
 /*
@@ -92,7 +93,7 @@ soc_button_device_create(struct platform_device *pdev,
                        continue;
 
                gpio = soc_button_lookup_gpio(&pdev->dev, info->acpi_index);
-               if (gpio < 0)
+               if (!gpio_is_valid(gpio))
                        continue;
 
                gpio_keys[n_buttons].type = info->event_type;