X-Git-Url: https://arthur.barton.de/gitweb/?a=blobdiff_plain;f=src%2Fsimple_pattern.c;h=f72a42d06e6e53c01eb3e5d4cd76637d728bd902;hb=1c5e878d6d711b6f362b1089975d85f63625bfb0;hp=7e4424297f86c2c311f58a57dedaa6221dddf144;hpb=a2d6499de3e0eb69673e30f96e82d3d9419ddd5a;p=netdata.git

diff --git a/src/simple_pattern.c b/src/simple_pattern.c
index 7e442429..f72a42d0 100644
--- a/src/simple_pattern.c
+++ b/src/simple_pattern.c
@@ -169,7 +169,7 @@ static inline int match_pattern(struct simple_pattern *m, const char *str, size_
 int simple_pattern_matches(SIMPLE_PATTERN *list, const char *str) {
     struct simple_pattern *m, *root = (struct simple_pattern *)list;
 
-    if(unlikely(!root)) return 0;
+    if(unlikely(!root || !str || !*str)) return 0;
 
     size_t len = strlen(str);
     for(m = root; m ; m = m->next)
@@ -184,8 +184,8 @@ int simple_pattern_matches(SIMPLE_PATTERN *list, const char *str) {
 static inline void free_pattern(struct simple_pattern *m) {
     if(!m) return;
 
-    if(m->next) free_pattern(m->next);
-    if(m->child) free_pattern(m->child);
+    free_pattern(m->child);
+    free_pattern(m->next);
     freez((void *)m->match);
     freez(m);
 }
@@ -193,5 +193,5 @@ static inline void free_pattern(struct simple_pattern *m) {
 void simple_pattern_free(SIMPLE_PATTERN *list) {
     if(!list) return;
 
-    free_pattern(((struct simple_pattern *)list)->next);
+    free_pattern(((struct simple_pattern *)list));
 }