linux-kernel - [PATCH] staging: gpib: Remove unused value

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Message-ID: <20241015210300.17941-1-everestkc@everestkc.com.np>
Date: Tue, 15 Oct 2024 15:02:57 -0600
From: "Everest K.C." <everestkc@...restkc.com.np>
To: dpenkler@...il.com,
	gregkh@...uxfoundation.org
Cc: "Everest K.C." <everestkc@...restkc.com.np>,
	skhan@...uxfoundation.org,
	linux-staging@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: [PATCH] staging: gpib: Remove unused value

The variable `complement_count` is assigned a value which is again
overwritten in the next statement.
Fix this by removing the first value assigning statement

This issue was reported by Coverity Scan.
Report:
CID 1600790: (#1 of 1): Unused value (UNUSED_VALUE)
assigned_value: Assigning value from length to complement_count here,
but that stored value is overwritten before it can be used.

Fixes: 4e127de14fa7 ("staging: gpib: Add National Instruments USB GPIB driver")
Signed-off-by: Everest K.C. <everestkc@...restkc.com.np>
---
 drivers/staging/gpib/ni_usb/ni_usb_gpib.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/staging/gpib/ni_usb/ni_usb_gpib.c b/drivers/staging/gpib/ni_usb/ni_usb_gpib.c
index 1da263676f2a..e19e18892468 100644
--- a/drivers/staging/gpib/ni_usb/ni_usb_gpib.c
+++ b/drivers/staging/gpib/ni_usb/ni_usb_gpib.c
@@ -759,7 +759,6 @@ static int ni_usb_write(gpib_board_t *board, uint8_t *buffer, size_t length,
 	if (!out_data)
 		return -ENOMEM;
 	out_data[i++] = 0x0d;
-	complement_count = length;
 	complement_count = length - 1;
 	complement_count = ~complement_count;
 	out_data[i++] = complement_count & 0xff;
-- 
2.43.0