[PATCH] fix up thinko in jbd2 revoke code

[James Bottomley <James.Bottomley@HansenPartnership.com>]

This commit:

commit e898f3154d78d1520265aade0992981866d827fb
Author: Duane Griffin <duaneg@dghda.com>
Date:   Tue Mar 25 19:47:39 2008 -0400

    jbd2: tidy up revoke cache initialisation and destruction

Introduced a thinko (it doesn't check whether jbd2_revoke_record cache
is null, it checks jbd2_revoke_table_cache twice).

Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

---

diff --git a/fs/jbd2/revoke.c b/fs/jbd2/revoke.c
index e13584a..4dc5b85 100644
--- a/fs/jbd2/revoke.c
+++ b/fs/jbd2/revoke.c
@@ -192,7 +192,7 @@ int __init jbd2_journal_init_revoke_caches(void)
 	jbd2_revoke_table_cache = kmem_cache_create("jbd2_revoke_table",
 					   sizeof(struct jbd2_revoke_table_s),
 					   0, SLAB_TEMPORARY, NULL);
-	if (jbd2_revoke_table_cache && jbd2_revoke_table_cache) {
+	if (jbd2_revoke_record_cache && jbd2_revoke_table_cache) {
 		return 0;
 	} else {
 		jbd2_journal_destroy_revoke_caches();