linux-kernel - [PATCH] block: drbd: drbd_receiver: Remove redundant assignment to err

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Date:   Fri, 30 Apr 2021 17:20:56 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     philipp.reisner@...bit.com
Cc:     lars.ellenberg@...bit.com, axboe@...nel.dk,
        drbd-dev@...ts.linbit.com, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] block: drbd: drbd_receiver: Remove redundant assignment to err

Variable err is set to '-EIO' but this value is never read as
it is overwritten or not used later on, hence it is a redundant
assignment and can be removed.

Clean up the following clang-analyzer warning:

drivers/block/drbd/drbd_receiver.c:3955:5: warning: Value stored to
'err' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/block/drbd/drbd_receiver.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/block/drbd/drbd_receiver.c b/drivers/block/drbd/drbd_receiver.c
index 69284eb..e3b1e87 100644
--- a/drivers/block/drbd/drbd_receiver.c
+++ b/drivers/block/drbd/drbd_receiver.c
@@ -3952,7 +3952,6 @@ static int receive_SyncParam(struct drbd_connection *connection, struct packet_i
 				drbd_err(device, "verify-alg of wrong size, "
 					"peer wants %u, accepting only up to %u byte\n",
 					data_size, SHARED_SECRET_MAX);
-				err = -EIO;
 				goto reconnect;
 			}
 
-- 
1.8.3.1