[PATCH 4.9 52/86] Input: tca8418_keypad - remove double read of key event register

Greg Kroah-Hartman
2018-03-16T15:33:41Z

From: Dmitry Torokhov <dmitry.torokhov@gmail.com>

commit 9dd46c02532a6bed6240101ecf4bbc407f8c6adf upstream.

There is no need to tread the same register twice in a row.

Fixes: ea4348c8462a ("Input: tca8418_keypad - hide gcc-4.9 -Wmaybe-un ...")
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Cc: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
drivers/input/keyboard/tca8418_keypad.c | 2 --
1 file changed, 2 deletions(-)

--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -189,8 +189,6 @@ static void tca8418_read_keypad(struct t
input_event(input, EV_MSC, MSC_SCAN, code);
input_report_key(input, keymap[code], state);

- /* Read for next loop */
- error = tca8418_read_byte(keypad_data, REG_KEY_EVENT_A, &reg);
} while (1);

input_sync(input);