basic/time-util: use strdup_to() and reformat a bit

diff --git a/src/basic/time-util.c b/src/basic/time-util.c
index 822d660fdada776cc0ad08aa9e85b67dbdc977f8..b94f37c31c31e45e7ee04f25fcd3c94c5e481b6f 100644 (file)
--- a/src/basic/time-util.c
+++ b/src/basic/time-util.c
@@ -1606,38 +1606,24 @@ bool clock_supported(clockid_t clock) {
 
 int get_timezone(char **ret) {
         _cleanup_free_ char *t = NULL;
-        const char *e;
-        char *z;
         int r;
 
         assert(ret);
 
         r = readlink_malloc("/etc/localtime", &t);
-        if (r == -ENOENT) {
+        if (r == -ENOENT)
                 /* If the symlink does not exist, assume "UTC", like glibc does */
-                z = strdup("UTC");
-                if (!z)
-                        return -ENOMEM;
-
-                *ret = z;
-                return 0;
-        }
+                return strdup_to(ret, "UTC");
         if (r < 0)
-                return r; /* returns EINVAL if not a symlink */
+                return r; /* Return EINVAL if not a symlink */
 
-        e = PATH_STARTSWITH_SET(t, "/usr/share/zoneinfo/", "../usr/share/zoneinfo/");
+        const char *e = PATH_STARTSWITH_SET(t, "/usr/share/zoneinfo/", "../usr/share/zoneinfo/");
         if (!e)
                 return -EINVAL;
-
         if (!timezone_is_valid(e, LOG_DEBUG))
                 return -EINVAL;
 
-        z = strdup(e);
-        if (!z)
-                return -ENOMEM;
-
-        *ret = z;
-        return 0;
+        return strdup_to(ret, e);
 }
 
 time_t mktime_or_timegm(struct tm *tm, bool utc) {