Input: scancode in get/set_keycodes should be unsigned

The HID layer has some scan codes of the form 0xffbc0000 for logitech
devices which do not work if scancode is typed as signed int, so we need
to switch to unsigned it instead. While at it keycode being signed does
not make much sense either.

Acked-by: Márton Németh <nm127@freemail.hu>
Acked-by: Matthew Garrett <mjg@redhat.com>
Acked-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Dmitry Torokhov <dtor@mail.ru>

1 files changed, 7 insertions, 8 deletions

diff --git a/drivers/platform/x86/hp-wmi.c b/drivers/platform/x86/hp-wmi.c
index 7ccf33c08967..56086363becc 100644
--- a/drivers/platform/x86/hp-wmi.c
+++ b/drivers/platform/x86/hp-wmi.c
@@ -278,7 +278,7 @@ static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als);
 static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL);
 static DEVICE_ATTR(tablet, S_IRUGO, show_tablet, NULL);
 
-static struct key_entry *hp_wmi_get_entry_by_scancode(int code)
+static struct key_entry *hp_wmi_get_entry_by_scancode(unsigned int code)
 {
         struct key_entry *key;
 
@@ -289,7 +289,7 @@ static struct key_entry *hp_wmi_get_entry_by_scancode(int code)
         return NULL;
 }
 
-static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode)
+static struct key_entry *hp_wmi_get_entry_by_keycode(unsigned int keycode)
 {
         struct key_entry *key;
 
@@ -300,7 +300,8 @@ static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode)
         return NULL;
 }
 
-static int hp_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode)
+static int hp_wmi_getkeycode(struct input_dev *dev,
+                             unsigned int scancode, unsigned int *keycode)
 {
         struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode);
 
@@ -312,13 +313,11 @@ static int hp_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode)
         return -EINVAL;
 }
 
-static int hp_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode)
+static int hp_wmi_setkeycode(struct input_dev *dev,
+                             unsigned int scancode, unsigned int keycode)
 {
         struct key_entry *key;
-        int old_keycode;
-
-        if (keycode < 0 || keycode > KEY_MAX)
-                return -EINVAL;
+        unsigned int old_keycode;
 
         key = hp_wmi_get_entry_by_scancode(scancode);
         if (key && key->type == KE_KEY) {