linux-kernel - [PATCH] scsi: target: configfs: Remove redundant assignment to ret

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Message-Id: <1619774627-118766-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Fri, 30 Apr 2021 17:23:47 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     martin.petersen@...cle.com
Cc:     linux-scsi@...r.kernel.org, target-devel@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] scsi: target: configfs: Remove redundant assignment to ret

Variable ret is set to '-EINVAL' but this value is never read as it is
overwritten later on, hence it is a redundant assignment and can be
removed.

Clean up the following clang-analyzer warning:

drivers/target/target_core_configfs.c:2037:5: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores].

drivers/target/target_core_configfs.c:1973:5: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores].

drivers/target/target_core_configfs.c:1959:5: warning: Value stored to
'ret' is never read [clang-analyzer-deadcode.DeadStores].

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
---
 drivers/target/target_core_configfs.c | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/drivers/target/target_core_configfs.c b/drivers/target/target_core_configfs.c
index 4b2e493..bda05c3 100644
--- a/drivers/target/target_core_configfs.c
+++ b/drivers/target/target_core_configfs.c
@@ -1956,7 +1956,6 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item,
 				pr_err("APTPL metadata initiator_node="
 					" exceeds PR_APTPL_MAX_IPORT_LEN: %d\n",
 					PR_APTPL_MAX_IPORT_LEN);
-				ret = -EINVAL;
 				break;
 			}
 			break;
@@ -1970,7 +1969,6 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item,
 				pr_err("APTPL metadata initiator_isid"
 					"= exceeds PR_REG_ISID_LEN: %d\n",
 					PR_REG_ISID_LEN);
-				ret = -EINVAL;
 				break;
 			}
 			break;
@@ -2034,7 +2032,6 @@ static ssize_t target_pr_res_aptpl_metadata_store(struct config_item *item,
 				pr_err("APTPL metadata target_node="
 					" exceeds PR_APTPL_MAX_TPORT_LEN: %d\n",
 					PR_APTPL_MAX_TPORT_LEN);
-				ret = -EINVAL;
 				break;
 			}
 			break;
-- 
1.8.3.1