linux-kernel - [PATCH 3.2 038/153] scsi: aacraid: remove redundant setting of variable c

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Message-ID: <lsq.1527677561.46783766@decadent.org.uk>
Date:   Wed, 30 May 2018 11:52:41 +0100
From:   Ben Hutchings <ben@...adent.org.uk>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
CC:     akpm@...ux-foundation.org,
        "Colin Ian King" <colin.king@...onical.com>,
        "Martin K. Petersen" <martin.petersen@...cle.com>,
        "Raghava Aditya Renukunta" <RaghavaAditya.Renukunta@...rosemi.com>
Subject: [PATCH 3.2 038/153] scsi: aacraid: remove redundant setting of
 variable c

3.2.102-rc1 review patch.  If anyone has any objections, please let me know.

------------------

From: Colin Ian King <colin.king@...onical.com>

commit 91814744646351a470f256fbcb853fb5a7229a9f upstream.

A previous commit no longer stores the contents of c, so we now have a
situation where c is being updated but the value is never read. Clean up
the code by removing the now redundant setting of variable c.

Cleans up clang warning:
drivers/scsi/aacraid/aachba.c:943:3: warning: Value stored to 'c' is
never read

Fixes: f4e8708d3104 ("scsi: aacraid: Fix udev inquiry race condition")
Signed-off-by: Colin Ian King <colin.king@...onical.com>
Reviewed-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@...rosemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@...cle.com>
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
 drivers/scsi/aacraid/aachba.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -784,11 +784,8 @@ static void setinqstr(struct aac_dev *de
 		while (*cp == ' ')
 			++cp;
 		/* last six chars reserved for vol type */
-		c = 0;
-		if (strlen(cp) > sizeof(str->pid)) {
-			c = cp[sizeof(str->pid)];
+		if (strlen(cp) > sizeof(str->pid))
 			cp[sizeof(str->pid)] = '\0';
-		}
 		inqstrcpy (cp, str->pid);
 
 		kfree(cname);