linux-kernel - [PATCH 18/46] selinux: One function call less in filename_trans

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Date:   Sun, 15 Jan 2017 16:18:06 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     linux-security-module@...r.kernel.org, selinux@...ho.nsa.gov,
        Eric Paris <eparis@...isplace.org>,
        James Morris <james.l.morris@...cle.com>,
        Paul Moore <paul@...l-moore.com>,
        "Serge E. Hallyn" <serge@...lyn.com>,
        Stephen Smalley <sds@...ho.nsa.gov>,
        William Roberts <william.c.roberts@...el.com>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        kernel-janitors@...r.kernel.org
Subject: [PATCH 18/46] selinux: One function call less in
 filename_trans_read() after error detection

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sat, 14 Jan 2017 19:19:42 +0100

Adjust a jump target to avoid a function call at the end after a memory
allocation failed for the local variable "ft".

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 security/selinux/ss/policydb.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/security/selinux/ss/policydb.c b/security/selinux/ss/policydb.c
index 2be5b18eb149..5f122e846332 100644
--- a/security/selinux/ss/policydb.c
+++ b/security/selinux/ss/policydb.c
@@ -1932,7 +1932,7 @@ static int filename_trans_read(struct policydb *p, void *fp)
 		ft = kzalloc(sizeof(*ft), GFP_KERNEL);
 		if (!ft) {
 			rc = -ENOMEM;
-			goto out;
+			goto free_name;
 		}
 
 		otype = kmalloc(sizeof(*otype), GFP_KERNEL);
@@ -1986,6 +1986,7 @@ static int filename_trans_read(struct policydb *p, void *fp)
 	return 0;
 out:
 	kfree(ft);
+free_name:
 	kfree(name);
 	kfree(otype);
 
-- 
2.11.0