diff --git a/fs/jbd/journal.c b/fs/jbd/journal.c
index 9816293..0e081d5 100644
--- a/fs/jbd/journal.c
+++ b/fs/jbd/journal.c
@@ -1620,14 +1620,14 @@
 {
 	int retval;
 
-	J_ASSERT(journal_head_cache == 0);
+	J_ASSERT(journal_head_cache == NULL);
 	journal_head_cache = kmem_cache_create("journal_head",
 				sizeof(struct journal_head),
 				0,		/* offset */
 				SLAB_TEMPORARY,	/* flags */
 				NULL);		/* ctor */
 	retval = 0;
-	if (journal_head_cache == 0) {
+	if (!journal_head_cache) {
 		retval = -ENOMEM;
 		printk(KERN_EMERG "JBD: no memory for journal_head cache\n");
 	}