linux-kernel - [PATCH 4/9] um/drivers/vector_user: Delete an unnecessary check before kfree() in user_init_socket

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <16c0e64e-01f1-4275-51cc-b56401f6f91d@users.sourceforge.net>
Date:   Sun, 11 Mar 2018 16:19:08 +0100
From:   SF Markus Elfring <elfring@...rs.sourceforge.net>
To:     user-mode-linux-devel@...ts.sourceforge.net,
        Anton Ivanov <anton.ivanov@...bridgegreys.com>,
        Jeff Dike <jdike@...toit.com>,
        Richard Weinberger <richard@....at>
Cc:     user-mode-linux-user@...ts.sourceforge.net,
        kernel-janitors@...r.kernel.org,
        LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH 4/9] um/drivers/vector_user: Delete an unnecessary check
 before kfree() in user_init_socket_fds()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Sun, 11 Mar 2018 14:00:09 +0100

The kfree() function tests whether its argument is NULL and then
returns immediately. Thus the test around the call is not needed.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---
 arch/um/drivers/vector_user.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/um/drivers/vector_user.c b/arch/um/drivers/vector_user.c
index 9cc4651990e3..e831bd85cad4 100644
--- a/arch/um/drivers/vector_user.c
+++ b/arch/um/drivers/vector_user.c
@@ -422,8 +422,7 @@ static struct vector_fds *user_init_socket_fds(struct arglist *ifspec, int id)
 	if (fd >= 0)
 		os_close_file(fd);
 	if (result != NULL) {
-		if (result->remote_addr != NULL)
-			kfree(result->remote_addr);
+		kfree(result->remote_addr);
 		kfree(result);
 	}
 
-- 
2.16.2