From: Kay Sievers <kay.sievers@vrfy.org>
Date: Tue, 1 Sep 2009 10:39:57 +0000 (+0200)
Subject: libudev-util.c: get_sys_link() - return error for empty link target
X-Git-Tag: 174~795
X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?p=elogind.git;a=commitdiff_plain;h=06526049121495429757a5d2aa39189c30ca4aa7;ds=sidebyside

libudev-util.c: get_sys_link() - return error for empty link target
---

diff --git a/libudev/libudev-util.c b/libudev/libudev-util.c
index 61cd96342..38cfd7d0e 100644
--- a/libudev/libudev-util.c
+++ b/libudev/libudev-util.c
@@ -31,7 +31,7 @@ static ssize_t get_sys_link(struct udev *udev, const char *slink, const char *sy
 
 	util_strscpyl(path, sizeof(path), syspath, "/", slink, NULL);
 	len = readlink(path, path, sizeof(path));
-	if (len < 0 || len >= (ssize_t) sizeof(path))
+	if (len <= 0 || len == (ssize_t)sizeof(path))
 		return -1;
 	path[len] = '\0';
 	pos = strrchr(path, '/');