From: Serge Hallyn <serge.hallyn@ubuntu.com>
Date: Tue, 20 Aug 2013 23:15:06 +0000 (-0500)
Subject: avoid very unlikely race due to EEXIST
X-Git-Tag: lxc-1.0.0.alpha1~1^2~39
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=84bdfb2b4c95b24fde5e90e621372fcd6c4d069b;p=thirdparty%2Flxc.git

avoid very unlikely race due to EEXIST

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
---

diff --git a/src/lxc/lxc_start.c b/src/lxc/lxc_start.c
index e7793046c..3a1241032 100644
--- a/src/lxc/lxc_start.c
+++ b/src/lxc/lxc_start.c
@@ -62,11 +62,12 @@ static int ensure_path(char **confpath, const char *path)
 	if (path) {
 		if (access(path, W_OK)) {
 			fd = creat(path, 0600);
-			if (fd < 0) {
+			if (fd < 0 && errno != EEXIST) {
 				SYSERROR("failed to create '%s'", path);
 				goto err;
 			}
-			close(fd);
+			if (fd >= 0)
+				close(fd);
 		}
 
 		fullpath = realpath(path, NULL);