linux-kernel - [PATCH] sysctl: remove impossible condition check

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] [day] [month] [year] [list]

Date:	Thu,  2 Jun 2011 13:00:44 -0300
From:	Lucas De Marchi <lucas.demarchi@...fusion.mobi>
To:	"Eric W. Biederman" <ebiederm@...ssion.com>
Cc:	Jesper Juhl <jj@...osbits.net>, linux-kernel@...r.kernel.org,
	Nick Piggin <npiggin@...nel.dk>,
	Christoph Hellwig <hch@....de>,
	Al Viro <viro@...iv.linux.org.uk>,
	Lucas De Marchi <lucas.demarchi@...fusion.mobi>
Subject: [PATCH] sysctl: remove impossible condition check

Signed-off-by: Lucas De Marchi <lucas.demarchi@...fusion.mobi>
---
 fs/proc/proc_sysctl.c |   14 ++------------
 1 files changed, 2 insertions(+), 12 deletions(-)

diff --git a/fs/proc/proc_sysctl.c b/fs/proc/proc_sysctl.c
index f50133c..6cbcb1e 100644
--- a/fs/proc/proc_sysctl.c
+++ b/fs/proc/proc_sysctl.c
@@ -49,17 +49,11 @@ out:
 
 static struct ctl_table *find_in_table(struct ctl_table *p, struct qstr *name)
 {
-	int len;
 	for ( ; p->procname; p++) {
-
-		if (!p->procname)
-			continue;
-
-		len = strlen(p->procname);
-		if (len != name->len)
+		if (strlen(p->procname) != name->len)
 			continue;
 
-		if (memcmp(p->procname, name->name, len) != 0)
+		if (memcmp(p->procname, name->name, name->len) != 0)
 			continue;
 
 		/* I have a match */
@@ -223,10 +217,6 @@ static int scan(struct ctl_table_header *head, ctl_table *table,
 	for (; table->procname; table++, (*pos)++) {
 		int res;
 
-		/* Can't do anything without a proc name */
-		if (!table->procname)
-			continue;
-
 		if (*pos < file->f_pos)
 			continue;
 
-- 
1.7.5.2

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/