summaryrefslogtreecommitdiff
path: root/drivers/char/keyboard.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/char/keyboard.c')
-rw-r--r--drivers/char/keyboard.c7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/char/keyboard.c b/drivers/char/keyboard.c
index 747683f055e..ca090e57e16 100644
--- a/drivers/char/keyboard.c
+++ b/drivers/char/keyboard.c
@@ -132,6 +132,7 @@ int shift_state = 0;
*/
static struct input_handler kbd_handler;
+static DEFINE_SPINLOCK(kbd_event_lock);
static unsigned long key_down[BITS_TO_LONGS(KEY_CNT)]; /* keyboard key bitmap */
static unsigned char shift_down[NR_SHIFT]; /* shift state counters.. */
static int dead_key_next;
@@ -1296,10 +1297,16 @@ static void kbd_keycode(unsigned int keycode, int down, int hw_raw)
static void kbd_event(struct input_handle *handle, unsigned int event_type,
unsigned int event_code, int value)
{
+ /* We are called with interrupts disabled, just take the lock */
+ spin_lock(&kbd_event_lock);
+
if (event_type == EV_MSC && event_code == MSC_RAW && HW_RAW(handle->dev))
kbd_rawcode(value);
if (event_type == EV_KEY)
kbd_keycode(event_code, value, HW_RAW(handle->dev));
+
+ spin_unlock(&kbd_event_lock);
+
tasklet_schedule(&keyboard_tasklet);
do_poke_blanked_console = 1;
schedule_console_callback();