linux-kernel - [PATCH] video: simplify strlen()==0 check in fb_get

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

Message-Id: <1277396186-11921-1-git-send-email-vda.linux@googlemail.com>
Date:	Thu, 24 Jun 2010 18:16:26 +0200
From:	Denys Vlasenko <vda.linux@...glemail.com>
To:	"Rafael J. Wysocki" <rjw@...k.pl>,
	James Simmons <jsimmons@...radead.org>,
	linux-fbdev@...r.kernel.org,
	Denys Vlasenko <vda.linux@...glemail.com>
Cc:	linux-kernel@...r.kernel.org,
	Denys Vlasenko <vda.linux@...glemail.com>
Subject: [PATCH] video: simplify strlen()==0 check in fb_get_options()

Replaced !strlen(str) check with !str[0]. Removed the variable
which was used solely to store strlen result.

Signed-off-by: Denys Vlasenko <vda.linux@...glemail.com>
---
 drivers/video/fbmem.c |    5 ++---
 1 files changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
index 731fce6..a8500c6 100644
--- a/drivers/video/fbmem.c
+++ b/drivers/video/fbmem.c
@@ -1786,7 +1786,7 @@ static int ofonly __read_mostly;
 int fb_get_options(char *name, char **option)
 {
 	char *opt, *options = NULL;
-	int opt_len, retval = 0;
+	int retval = 0;
 	int name_len = strlen(name), i;
 
 	if (name_len && ofonly && strncmp(name, "offb", 4))
@@ -1796,8 +1796,7 @@ int fb_get_options(char *name, char **option)
 		for (i = 0; i < FB_MAX; i++) {
 			if (video_options[i] == NULL)
 				continue;
-			opt_len = strlen(video_options[i]);
-			if (!opt_len)
+			if (!video_options[i][0])
 				continue;
 			opt = video_options[i];
 			if (!strncmp(name, opt, name_len) &&
-- 
1.6.2.5

--
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/