Index: uspace/lib/c/generic/adt/hash_table.c
===================================================================
--- uspace/lib/c/generic/adt/hash_table.c	(revision 7cfe5c035807f24eb685752e38192c922b60c893)
+++ uspace/lib/c/generic/adt/hash_table.c	(revision c8fccf5b75e9757a8b5d17f388f8c4e32b8d1a07)
@@ -112,5 +112,5 @@
 	h->apply_ongoing = false;
 
-	if (h->op->remove_callback == 0) {
+	if (h->op->remove_callback == NULL) {
 		h->op->remove_callback = nop_remove_callback;
 	}
@@ -133,5 +133,5 @@
 	free(h->bucket);
 
-	h->bucket = 0;
+	h->bucket = NULL;
 	h->bucket_cnt = 0;
 }