fix undefined value for log_level when not set in the conf file

diff --git a/sapi/fpm/fpm/zlog.c b/sapi/fpm/fpm/zlog.c
index 5aed22a640ebd2c78b832a56e80b7b40d49f19ac..fc3c0168e153f5b3999ce8fde814f223cef2956c 100644 (file)
--- a/sapi/fpm/fpm/zlog.c
+++ b/sapi/fpm/fpm/zlog.c
@@ -51,6 +51,8 @@ int zlog_set_level(int new_value) /* {{{ */
 {
        int old_value = zlog_level;
 
+       if (new_value < ZLOG_DEBUG || new_value > ZLOG_ALERT) return old_value;
+
        zlog_level = new_value;
        return old_value;
 }