netdev - [PATCH net-next v5 2/8] net: pktgen: remove extra tmp variable (re-use len instead)

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: <20250213111920.1439021-3-ps.report@gmx.net>
Date: Thu, 13 Feb 2025 12:19:14 +0100
From: Peter Seiderer <ps.report@....net>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org,
	linux-kselftest@...r.kernel.org,
	"David S . Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Simon Horman <horms@...nel.org>,
	Shuah Khan <shuah@...nel.org>,
	Peter Seiderer <ps.report@....net>,
	Thomas Gleixner <tglx@...utronix.de>,
	Artem Chernyshev <artem.chernyshev@...-soft.ru>,
	Nam Cao <namcao@...utronix.de>,
	Frederic Weisbecker <frederic@...nel.org>
Subject: [PATCH net-next v5 2/8] net: pktgen: remove extra tmp variable (re-use len instead)

Remove extra tmp variable in pktgen_if_write (re-use len instead).

Signed-off-by: Peter Seiderer <ps.report@....net>
Reviewed-by: Simon Horman <horms@...nel.org>
---
Changes v4 -> v5
  - split up patchset into part i/ii (suggested by Simon Horman)
  - add rev-by Simon Horman

Changes v3 -> v4
  - new patch (factored out of patch 'net: pktgen: fix access outside of user
    given buffer in pktgen_if_write()')
---
 net/core/pktgen.c | 9 ++++-----
 1 file changed, 4 insertions(+), 5 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 36ee0422c6cc..b9d8e33abe1e 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -970,7 +970,6 @@ static ssize_t pktgen_if_write(struct file *file,
 	char name[16], valstr[32];
 	unsigned long value = 0;
 	char *pg_result = NULL;
-	int tmp = 0;
 	char buf[128];
 
 	pg_result = &(pkt_dev->result[0]);
@@ -981,12 +980,12 @@ static ssize_t pktgen_if_write(struct file *file,
 	}
 
 	max = count;
-	tmp = count_trail_chars(user_buffer, max);
-	if (tmp < 0) {
+	len = count_trail_chars(user_buffer, max);
+	if (len < 0) {
 		pr_warn("illegal format\n");
-		return tmp;
+		return len;
 	}
-	i = tmp;
+	i = len;
 
 	/* Read variable name */
 
-- 
2.48.1