linux-kernel - [PATCH] w1: ds2438: remove redundant initialization of variable crc

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Date:   Sun, 22 May 2022 20:46:22 +0100
From:   Colin Ian King <colin.i.king@...il.com>
To:     Evgeniy Polyakov <zbr@...emap.net>
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] w1: ds2438: remove redundant initialization of variable crc

Variable crc is being initialized with a value that is never read,
it is being re-assigned later on. The initialization is redundant
and can be removed.

Cleans up clang scan build warning:
warning: Value stored to 'crc' is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@...il.com>
---
 drivers/w1/slaves/w1_ds2438.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/w1/slaves/w1_ds2438.c b/drivers/w1/slaves/w1_ds2438.c
index ca64f99c8f3d..e008c27b3db9 100644
--- a/drivers/w1/slaves/w1_ds2438.c
+++ b/drivers/w1/slaves/w1_ds2438.c
@@ -66,8 +66,6 @@ static int w1_ds2438_get_page(struct w1_slave *sl, int pageno, u8 *buf)
 	size_t count;
 
 	while (retries--) {
-		crc = 0;
-
 		if (w1_reset_select_slave(sl))
 			continue;
 		w1_buf[0] = W1_DS2438_RECALL_MEMORY;
-- 
2.35.3