linux-kernel - [PATCH v2] USB: cypress_m8: remove unused variable

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Date:   Tue,  3 Jan 2017 21:01:10 +0000
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     Johan Hovold <johan@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
        Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
Subject: [PATCH v2] USB: cypress_m8: remove unused variable

From: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>

The variable havedata was only being set but never used afterwards.

Signed-off-by: Sudip Mukherjee <sudip.mukherjee@...ethink.co.uk>
---

v2: changed the from line

 drivers/usb/serial/cypress_m8.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index bbeeb2b..90110de 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -1069,7 +1069,6 @@ static void cypress_read_int_callback(struct urb *urb)
 	unsigned char *data = urb->transfer_buffer;
 	unsigned long flags;
 	char tty_flag = TTY_NORMAL;
-	int havedata = 0;
 	int bytes = 0;
 	int result;
 	int i = 0;
@@ -1118,16 +1117,12 @@ static void cypress_read_int_callback(struct urb *urb)
 		priv->current_status = data[0] & 0xF8;
 		bytes = data[1] + 2;
 		i = 2;
-		if (bytes > 2)
-			havedata = 1;
 		break;
 	case packet_format_2:
 		/* This is for the CY7C63743... */
 		priv->current_status = data[0] & 0xF8;
 		bytes = (data[0] & 0x07) + 1;
 		i = 1;
-		if (bytes > 1)
-			havedata = 1;
 		break;
 	}
 	spin_unlock_irqrestore(&priv->lock, flags);
-- 
1.9.1