avoid very unlikely race due to EEXIST

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

avoid very unlikely race due to EEXIST
84bdfb2b · Serge Hallyn · 659aa061 · 84bdfb2b
Commit 84bdfb2b authored Aug 20, 2013 by Serge Hallyn
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Showing with 3 additions and 2 deletions

lxc_start.c src/lxc/lxc_start.c +3 -2

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--- 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);