linux-kernel - [PATCH 4/5]block:cryptoloop Fix warning: variable 'cipher' set but not used

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Date:	Sat, 26 Jun 2010 23:47:25 -0700
From:	"Justin P. Mattock" <justinmattock@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	dhowells@...hat.com, sds@...ho.nsa.gov, lenb@...nel.org,
	linux-bluetooth@...r.kernel.org,
	"Justin P. Mattock" <justinmattock@...il.com>
Subject: [PATCH 4/5]block:cryptoloop Fix warning: variable 'cipher' set but not used

Im getting this when compiling on gcc 4.6.0
  CC [M]  drivers/block/cryptoloop.o
drivers/block/cryptoloop.c: In function 'cryptoloop_init':
drivers/block/cryptoloop.c:46:8: warning: variable 'cipher' set but not used
The below fixes it for me. Please have a look and let me know.

 Signed-off-by: Justin P. Mattock <justinmattock@...il.com>

---
 drivers/block/cryptoloop.c |    2 --
 1 files changed, 0 insertions(+), 2 deletions(-)

diff --git a/drivers/block/cryptoloop.c b/drivers/block/cryptoloop.c
index 8b6bb76..fb8a6fd 100644
--- a/drivers/block/cryptoloop.c
+++ b/drivers/block/cryptoloop.c
@@ -43,7 +43,6 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info)
 	int cipher_len;
 	int mode_len;
 	char cms[LO_NAME_SIZE];			/* cipher-mode string */
-	char *cipher;
 	char *mode;
 	char *cmsp = cms;			/* c-m string pointer */
 	struct crypto_blkcipher *tfm;
@@ -56,7 +55,6 @@ cryptoloop_init(struct loop_device *lo, const struct loop_info64 *info)
 	strncpy(cms, info->lo_crypt_name, LO_NAME_SIZE);
 	cms[LO_NAME_SIZE - 1] = 0;
 
-	cipher = cmsp;
 	cipher_len = strcspn(cmsp, "-");
 
 	mode = cmsp + cipher_len;
-- 
1.7.1.rc1.21.gf3bd6

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