linux-kernel - [PATCH] Input: tca8418_keypad - remove double read of key event register

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Message-ID: <20170213235038.GA25758@dtor-ws>
Date:   Mon, 13 Feb 2017 15:50:38 -0800
From:   Dmitry Torokhov <dmitry.torokhov@...il.com>
To:     linux-input@...r.kernel.org
Cc:     Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org
Subject: [PATCH] Input: tca8418_keypad - remove double read of key event
 register

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

diff --git a/drivers/input/keyboard/tca8418_keypad.c b/drivers/input/keyboard/tca8418_keypad.c
index 44dd7689c571..e37e335e406f 100644
--- a/drivers/input/keyboard/tca8418_keypad.c
+++ b/drivers/input/keyboard/tca8418_keypad.c
@@ -188,8 +188,6 @@ static void tca8418_read_keypad(struct tca8418_keypad *keypad_data)
 		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);
-- 
2.11.0.483.g087da7b7c-goog

-- 
Dmitry