sparse pointer use of zero as null

Get rid of sparse related warnings from places that use integer as NULL
pointer.

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Jeff Garzik <jeff@garzik.org>
Cc: Matt Mackall <mpm@selenic.com>
Cc: Ian Kent <raven@themaw.net>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Davide Libenzi <davidel@xmailserver.org>
Cc: Stephen Smalley <sds@tycho.nsa.gov>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

1 files changed, 6 insertions, 6 deletions

diff --git a/fs/jbd/transaction.c b/fs/jbd/transaction.c
index 0282deb8ff2d..9841b1e5af03 100644
--- a/fs/jbd/transaction.c
+++ b/fs/jbd/transaction.c
@@ -1172,7 +1172,7 @@ int journal_dirty_metadata(handle_t *handle, struct buffer_head *bh)
         }
 
         /* That test should have eliminated the following case: */
-        J_ASSERT_JH(jh, jh->b_frozen_data == 0);
+        J_ASSERT_JH(jh, jh->b_frozen_data == NULL);
 
         JBUFFER_TRACE(jh, "file as BJ_Metadata");
         spin_lock(&journal->j_list_lock);
@@ -1522,7 +1522,7 @@ static void __journal_temp_unlink_buffer(struct journal_head *jh)
 
         J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
         if (jh->b_jlist != BJ_None)
-                J_ASSERT_JH(jh, transaction != 0);
+                J_ASSERT_JH(jh, transaction != NULL);
 
         switch (jh->b_jlist) {
         case BJ_None:
@@ -1591,11 +1591,11 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
         if (buffer_locked(bh) || buffer_dirty(bh))
                 goto out;
 
-        if (jh->b_next_transaction != 0)
+        if (jh->b_next_transaction != NULL)
                 goto out;
 
         spin_lock(&journal->j_list_lock);
-        if (jh->b_transaction != 0 && jh->b_cp_transaction == 0) {
+        if (jh->b_transaction != NULL && jh->b_cp_transaction == NULL) {
                 if (jh->b_jlist == BJ_SyncData || jh->b_jlist == BJ_Locked) {
                         /* A written-back ordered data buffer */
                         JBUFFER_TRACE(jh, "release data");
@@ -1603,7 +1603,7 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
                         journal_remove_journal_head(bh);
                         __brelse(bh);
                 }
-        } else if (jh->b_cp_transaction != 0 && jh->b_transaction == 0) {
+        } else if (jh->b_cp_transaction != NULL && jh->b_transaction == NULL) {
                 /* written-back checkpointed metadata buffer */
                 if (jh->b_jlist == BJ_None) {
                         JBUFFER_TRACE(jh, "remove from checkpoint list");
@@ -1963,7 +1963,7 @@ void __journal_file_buffer(struct journal_head *jh,
 
         J_ASSERT_JH(jh, jh->b_jlist < BJ_Types);
         J_ASSERT_JH(jh, jh->b_transaction == transaction ||
-                                jh->b_transaction == 0);
+                                jh->b_transaction == NULL);
 
         if (jh->b_transaction && jh->b_jlist == jlist)
                 return;