staging: vme: fix bare use of 'unsigned'

fix checkpatch.pl warning about 'Prefer 'unsigned int' to bare use of
'unsigned''
Signed-off-by: Clifton Barnes <clifton.a.barnes@gmail.com>
Acked-by: Martyn Welch <martyn@welchs.me.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vme/devices/vme_pio2_gpio.c

@@ -97,7 +97,7 @@ static void pio2_gpio_set(struct gpio_chip *chip,
 }
 
 /* Directionality configured at board build - send appropriate response */
-static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
+static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned int offset)
 {
 	int data;
 	struct pio2_card *card = gpio_to_pio2_card(chip);
@@ -116,7 +116,8 @@ static int pio2_gpio_dir_in(struct gpio_chip *chip, unsigned offset)
 }
 
 /* Directionality configured at board build - send appropriate response */
-static int pio2_gpio_dir_out(struct gpio_chip *chip, unsigned offset, int value)
+static int pio2_gpio_dir_out(struct gpio_chip *chip,
+			     unsigned int offset, int value)
 {
 	int data;
 	struct pio2_card *card = gpio_to_pio2_card(chip);