linux-kernel - [PATCH] avc: remove unnecessary pointer reassignment

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Message-Id: <1424987742-15120-1-git-send-email-jeffv@google.com>
Date:	Thu, 26 Feb 2015 13:54:17 -0800
From:	Jeff Vander Stoep <jeffv@...gle.com>
To:	jvanderstoep@...il.com
Cc:	Jeff Vander Stoep <jeffv@...gle.com>,
	Paul Moore <paul@...l-moore.com>,
	Stephen Smalley <sds@...ho.nsa.gov>,
	Eric Paris <eparis@...isplace.org>,
	James Morris <james.l.morris@...cle.com>,
	"Serge E. Hallyn" <serge@...lyn.com>, selinux@...ho.nsa.gov,
	linux-security-module@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] avc: remove unnecessary pointer reassignment

Commit f01e1af445fa ("selinux: don't pass in NULL avd to avc_has_perm_noaudit")
made this pointer reassignment unnecessary. Avd should continue to reference
the stack-based copy.

Signed-off-by: Jeff Vander Stoep <jeffv@...gle.com>
---
 security/selinux/avc.c | 6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/security/selinux/avc.c b/security/selinux/avc.c
index afcc0ae..3c17dda 100644
--- a/security/selinux/avc.c
+++ b/security/selinux/avc.c
@@ -724,12 +724,10 @@ inline int avc_has_perm_noaudit(u32 ssid, u32 tsid,
 	rcu_read_lock();
 
 	node = avc_lookup(ssid, tsid, tclass);
-	if (unlikely(!node)) {
+	if (unlikely(!node))
 		node = avc_compute_av(ssid, tsid, tclass, avd);
-	} else {
+	else
 		memcpy(avd, &node->ae.avd, sizeof(*avd));
-		avd = &node->ae.avd;
-	}
 
 	denied = requested & ~(avd->allowed);
 	if (unlikely(denied))
-- 
2.2.0.rc0.207.ga3a616c

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