linux-kernel - [PATCH linux-next] smack: lsm: remove the unneeded result variable

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Message-Id: <20220912100535.18125-1-xu.panda@zte.com.cn>
Date:   Mon, 12 Sep 2022 10:05:36 +0000
From:   cgel.zte@...il.com
To:     casey@...aufler-ca.com
Cc:     paul@...l-moore.com, jmorris@...ei.org, serge@...lyn.com,
        linux-security-module@...r.kernel.org,
        linux-kernel@...r.kernel.org, Xu Panda <xu.panda@....com.cn>,
        Zeal Robot <zealci@....com.cn>
Subject: [PATCH linux-next] smack: lsm: remove the unneeded result variable

From: Xu Panda <xu.panda@....com.cn>

Return the value smk_ptrace_rule_check() directly instead of storing it
in another redundant variable.

Reported-by: Zeal Robot <zealci@....com.cn>
Signed-off-by: Xu Panda <xu.panda@....com.cn>
---
 security/smack/smack_lsm.c | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c
index 16e24a6cdc7c..b6306d71c908 100644
--- a/security/smack/smack_lsm.c
+++ b/security/smack/smack_lsm.c
@@ -497,13 +497,11 @@ static int smack_ptrace_access_check(struct task_struct *ctp, unsigned int mode)
  */
 static int smack_ptrace_traceme(struct task_struct *ptp)
 {
-       int rc;
        struct smack_known *skp;

        skp = smk_of_task(smack_cred(current_cred()));

-       rc = smk_ptrace_rule_check(ptp, skp, PTRACE_MODE_ATTACH, __func__);
-       return rc;
+       return smk_ptrace_rule_check(ptp, skp, PTRACE_MODE_ATTACH, __func__);
 }

 /**
-- 
2.15.2