linux-kernel - [PATCH v2 3/4] input: touchscreen: usbtouchscreen: Remove unused variable 'ret'

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Date:   Thu, 26 Nov 2020 13:36:06 +0000
From:   Lee Jones <lee.jones@...aro.org>
To:     lee.jones@...aro.org
Cc:     linux-kernel@...r.kernel.org,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Henrik Rydberg <rydberg@...math.org>,
        James Hilliard <james.hilliard1@...il.com>,
        Daniel Ritz <daniel.ritz@....ch>, linux-input@...r.kernel.org
Subject: [PATCH v2 3/4] input: touchscreen: usbtouchscreen: Remove unused variable 'ret'

Fixes the following W=1 kernel build warning(s):

 drivers/input/touchscreen/usbtouchscreen.c: In function ‘nexio_read_data’:
 drivers/input/touchscreen/usbtouchscreen.c:1052:50: warning: variable ‘ret’ set but not used [-Wunused-but-set-variable]

Cc: Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc: Henrik Rydberg <rydberg@...math.org>
Cc: James Hilliard <james.hilliard1@...il.com>
Cc: Daniel Ritz <daniel.ritz@....ch>
Cc: linux-input@...r.kernel.org
Signed-off-by: Lee Jones <lee.jones@...aro.org>
---
 drivers/input/touchscreen/usbtouchscreen.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/input/touchscreen/usbtouchscreen.c b/drivers/input/touchscreen/usbtouchscreen.c
index 397cb1d3f481b..c3b7130cd9033 100644
--- a/drivers/input/touchscreen/usbtouchscreen.c
+++ b/drivers/input/touchscreen/usbtouchscreen.c
@@ -1049,7 +1049,7 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
 	unsigned int data_len = be16_to_cpu(packet->data_len);
 	unsigned int x_len = be16_to_cpu(packet->x_len);
 	unsigned int y_len = be16_to_cpu(packet->y_len);
-	int x, y, begin_x, begin_y, end_x, end_y, w, h, ret;
+	int x, y, begin_x, begin_y, end_x, end_y, w, h;
 
 	/* got touch data? */
 	if ((pkt[0] & 0xe0) != 0xe0)
@@ -1061,7 +1061,7 @@ static int nexio_read_data(struct usbtouch_usb *usbtouch, unsigned char *pkt)
 		x_len -= 0x80;
 
 	/* send ACK */
-	ret = usb_submit_urb(priv->ack, GFP_ATOMIC);
+	usb_submit_urb(priv->ack, GFP_ATOMIC);
 
 	if (!usbtouch->type->max_xc) {
 		usbtouch->type->max_xc = 2 * x_len;
-- 
2.25.1