Re: [PATCH] input&tty: Fix the keyboard led light display problem

Switching from the desktop environment to the tty environment,
the state of the keyboard led lights and the state of the keyboard
lock are inconsistent. This is because the attribute kb->kbdmode
of the tty bound in the desktop environment (xorg) is set to
VC_OFF, which causes the ledstate and kb->ledflagstate
values of the bound tty to always be 0, which causes the switch
from the desktop When to the tty environment, the LED light
status is inconsistent with the keyboard lock status.

Signed-off-by: lianzhi chang <redacted>
---
 drivers/input/input.c     |  7 ++++++-
 drivers/tty/vt/keyboard.c | 30 +++++++++++++++++++++++++++++-
 include/linux/kbd_kern.h  |  2 ++
 3 files changed, 37 insertions(+), 2 deletions(-)

diff --git a/drivers/input/input.c b/drivers/input/input.c
index ccaeb2426385..43c09700bf68 100644
--- a/drivers/input/input.c
+++ b/drivers/input/input.c

@@ -25,6 +25,7 @@
 #include <linux/rcupdate.h>
 #include "input-compat.h"
 #include "input-poller.h"
+#include <linux/kbd_kern.h>
 
 MODULE_AUTHOR("Vojtech Pavlik <vojtech@suse.cz>");
 MODULE_DESCRIPTION("Input core");

@@ -472,8 +473,12 @@ void input_inject_event(struct input_handle *handle,
 
 		rcu_read_lock();
 		grab = rcu_dereference(dev->grab);
-		if (!grab || grab == handle)
+		if (!grab || grab == handle) {
 			input_handle_event(dev, type, code, value);
+
+			if (type == EV_LED && code < LED_SCROLLL)
+				update_value_ledstate(code, value);