lwsac: unreference: allow to be called with NULL

mgiaco · Nov 28, 2018 · 30be5cb · 30be5cb
1 parent 4edd5ca
commit 30be5cb
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/lib/misc/lwsac/lwsac.c b/lib/misc/lwsac/lwsac.c
@@ -168,6 +168,8 @@ lwsac_reference(struct lwsac *head)
 void
 lwsac_unreference(struct lwsac **head)
 {
+	if (!(*head))
+		return;
 	(*head)->refcount--;
 	if ((*head)->detached && !(*head)->refcount)
 		lwsac_free(head);