thinkpad_acpi: off by one in adaptive_keyboard_hotkey_notify_hotkey()

This should be >= instead of > because otherwise we read one element
past the end of the hotkey_keycode_map[] array.

The hotkey_keycode_map[] array has TPACPI_HOTKEY_MAP_LEN elements.

Fixes: 6a68d8557084 ('thinkpad_acpi: Add support for more adaptive kbd buttons')
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Acked-By: Bastien Nocera <hadess@hadess.net>
Acked-by: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
Signed-off-by: Darren Hart <dvhart@linux.intel.com>

diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 024861d..7769575 100644 (file)
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -3656,8 +3656,9 @@ static bool adaptive_keyboard_hotkey_notify_hotkey(unsigned int scancode)
                return true;
 
        default:
-               if (scancode < FIRST_ADAPTIVE_KEY || scancode > FIRST_ADAPTIVE_KEY +
-                               TPACPI_HOTKEY_MAP_LEN - ADAPTIVE_KEY_OFFSET) {
+               if (scancode < FIRST_ADAPTIVE_KEY ||
+                   scancode >= FIRST_ADAPTIVE_KEY + TPACPI_HOTKEY_MAP_LEN -
+                               ADAPTIVE_KEY_OFFSET) {
                        pr_info("Unhandled adaptive keyboard key: 0x%x\n",
                                        scancode);
                        return false;