linux-kernel - [PATCH] scsi: pm8001: pm80xx_hwi.c: Cleaning up uninitialized variables

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Date:	Sun,  1 Jun 2014 15:13:30 +0200
From:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
To:	xjtuwjp@...il.com, lindar_liu@...sh.com
Cc:	Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>,
	"James E.J. Bottomley" <JBottomley@...allels.com>,
	linux-scsi@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] scsi: pm8001: pm80xx_hwi.c:  Cleaning up uninitialized variables

There is a risk that the variable will be used without being initialized.

This was largely found by using a static code analysis program called cppcheck.

Signed-off-by: Rickard Strandqvist <rickard_strandqvist@...ctrumdigital.se>
---
 drivers/scsi/pm8001/pm80xx_hwi.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/scsi/pm8001/pm80xx_hwi.c b/drivers/scsi/pm8001/pm80xx_hwi.c
index d70587f..add019b 100644
--- a/drivers/scsi/pm8001/pm80xx_hwi.c
+++ b/drivers/scsi/pm8001/pm80xx_hwi.c
@@ -948,7 +948,7 @@ static int
 pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 {
 	u32 scratch3_value;
-	int ret;
+	int ret = -1;
 
 	/* Read encryption status from SCRATCH PAD 3 */
 	scratch3_value = pm8001_cr32(pm8001_ha, 0, MSGU_SCRATCH_PAD_3);
@@ -982,7 +982,7 @@ pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 		pm8001_ha->encrypt_info.status = 0xFFFFFFFF;
 		pm8001_ha->encrypt_info.cipher_mode = 0;
 		pm8001_ha->encrypt_info.sec_mode = 0;
-		return 0;
+		ret = 0;
 	} else if ((scratch3_value & SCRATCH_PAD3_ENC_MASK) ==
 				SCRATCH_PAD3_ENC_DIS_ERR) {
 		pm8001_ha->encrypt_info.status =
@@ -1004,7 +1004,6 @@ pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 			scratch3_value, pm8001_ha->encrypt_info.cipher_mode,
 			pm8001_ha->encrypt_info.sec_mode,
 			pm8001_ha->encrypt_info.status));
-		ret = -1;
 	} else if ((scratch3_value & SCRATCH_PAD3_ENC_MASK) ==
 				 SCRATCH_PAD3_ENC_ENA_ERR) {
 
@@ -1028,7 +1027,6 @@ pm80xx_get_encrypt_info(struct pm8001_hba_info *pm8001_ha)
 			scratch3_value, pm8001_ha->encrypt_info.cipher_mode,
 			pm8001_ha->encrypt_info.sec_mode,
 			pm8001_ha->encrypt_info.status));
-		ret = -1;
 	}
 	return ret;
 }
-- 
1.7.10.4

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