tree-wide: make condition_free_list return NULL

2 files changed, 4 insertions, 2 deletions

diff --git a/src/shared/condition.c b/src/shared/condition.c
index dcbf9a7e86..3a3452959d 100644
--- a/src/shared/condition.c
+++ b/src/shared/condition.c
@@ -73,11 +73,13 @@ void condition_free(Condition *c) {
         free(c);
 }
 
-void condition_free_list(Condition *first) {
+Condition* condition_free_list(Condition *first) {
         Condition *c, *n;
 
         LIST_FOREACH_SAFE(conditions, c, n, first)
                 condition_free(c);
+
+        return NULL;
 }
 
 static int condition_test_kernel_command_line(Condition *c) {
diff --git a/src/shared/condition.h b/src/shared/condition.h
index 28d1d94ff4..0780e78123 100644
--- a/src/shared/condition.h
+++ b/src/shared/condition.h
@@ -79,7 +79,7 @@ typedef struct Condition {
 
 Condition* condition_new(ConditionType type, const char *parameter, bool trigger, bool negate);
 void condition_free(Condition *c);
-void condition_free_list(Condition *c);
+Condition* condition_free_list(Condition *c);
 
 int condition_test(Condition *c);