tty: keyboard.c: Remove locking from vt_get_leds.

There are three call sites for this function, and all three
are called within a keyboard handler.
kbd_event_lock is already held within keyboard handlers,
so attempting to lock it in vt_get_leds causes deadlock.

Signed-off-by: Christopher Brannon <chris@the-brannons.com>
Acked-by: Alan Cox <alan@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

1 files changed, 0 insertions, 3 deletions

diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
index 0b6217c93036..9b4f60a6ab0e 100644
--- a/drivers/tty/vt/keyboard.c
+++ b/drivers/tty/vt/keyboard.c
@@ -1049,13 +1049,10 @@ static int kbd_update_leds_helper(struct input_handle *handle, void *data)
  */
 int vt_get_leds(int console, int flag)
 {
-        unsigned long flags;
         struct kbd_struct * kbd = kbd_table + console;
         int ret;
 
-        spin_lock_irqsave(&kbd_event_lock, flags);
         ret = vc_kbd_led(kbd, flag);
-        spin_unlock_irqrestore(&kbd_event_lock, flags);
 
         return ret;
 }