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From: Dan Carpenter <dan.carpenter@oracle.com>
To: Kyungmin Park <kyungmin.park@samsung.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	linux-mtd@lists.infradead.org, kernel-janitors@vger.kernel.org
Subject: [patch] mtd: silence some uninitialized variable warnings
Date: Wed, 13 Apr 2016 06:42:34 +0000	[thread overview]
Message-ID: <20160413064234.GE8092@mwanda> (raw)

The "tmp_retlen" variable can be uninitialized if action() fails.  It's
harmless except for the static checker warning.  I have moved the error
handling earlier to fix it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index af28bb3..006a464 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -3201,13 +3201,13 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
 			size_t tmp_retlen;
 
 			ret = action(mtd, from, len, &tmp_retlen, buf);
+			if (ret)
+				break;
 
 			buf += tmp_retlen;
 			len -= tmp_retlen;
 			*retlen += tmp_retlen;
 
-			if (ret)
-				break;
 		}
 		otp_pages--;
 	}

WARNING: multiple messages have this Message-ID (diff)
From: Dan Carpenter <dan.carpenter@oracle.com>
To: Kyungmin Park <kyungmin.park@samsung.com>
Cc: David Woodhouse <dwmw2@infradead.org>,
	Brian Norris <computersforpeace@gmail.com>,
	linux-mtd@lists.infradead.org, kernel-janitors@vger.kernel.org
Subject: [patch] mtd: silence some uninitialized variable warnings
Date: Wed, 13 Apr 2016 09:42:34 +0300	[thread overview]
Message-ID: <20160413064234.GE8092@mwanda> (raw)

The "tmp_retlen" variable can be uninitialized if action() fails.  It's
harmless except for the static checker warning.  I have moved the error
handling earlier to fix it.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>

diff --git a/drivers/mtd/onenand/onenand_base.c b/drivers/mtd/onenand/onenand_base.c
index af28bb3..006a464 100644
--- a/drivers/mtd/onenand/onenand_base.c
+++ b/drivers/mtd/onenand/onenand_base.c
@@ -3201,13 +3201,13 @@ static int onenand_otp_walk(struct mtd_info *mtd, loff_t from, size_t len,
 			size_t tmp_retlen;
 
 			ret = action(mtd, from, len, &tmp_retlen, buf);
+			if (ret)
+				break;
 
 			buf += tmp_retlen;
 			len -= tmp_retlen;
 			*retlen += tmp_retlen;
 
-			if (ret)
-				break;
 		}
 		otp_pages--;
 	}

             reply	other threads:[~2016-04-13  6:42 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-04-13  6:42 Dan Carpenter [this message]
2016-04-13  6:42 ` [patch] mtd: silence some uninitialized variable warnings Dan Carpenter
2016-07-10  1:50 ` Brian Norris
2016-07-10  1:50   ` Brian Norris

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