xfs: mute some sparse warnings

These three warnings are fixed:

fs/xfs/xfs_inode.c:1033:44: warning: Using plain integer as NULL pointer
fs/xfs/xfs_inode_item.c:525:20: warning: context imbalance in 'xfs_inode_item_push' - unexpected unlock
fs/xfs/xfs_dquot.c:696:1: warning: symbol 'xfs_dq_get_next_id' was not declared. Should it be static?

Signed-off-by: Eryu Guan <guaneryu@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Dave Chinner <david@fromorbit.com>

3 files changed, 4 insertions, 2 deletions

diff --git a/fs/xfs/xfs_dquot.c b/fs/xfs/xfs_dquot.c
index 316b2a1bdba5..8f51370c95c4 100644
--- a/fs/xfs/xfs_dquot.c
+++ b/fs/xfs/xfs_dquot.c
@@ -692,7 +692,7 @@ error0:
  * end of the chunk, skip ahead to first id in next allocated chunk
  * using the SEEK_DATA interface.
  */
-int
+static int
 xfs_dq_get_next_id(
         xfs_mount_t             *mp,
         uint                    type,
diff --git a/fs/xfs/xfs_inode.c b/fs/xfs/xfs_inode.c
index 96f606deee31..1445a99a6868 100644
--- a/fs/xfs/xfs_inode.c
+++ b/fs/xfs/xfs_inode.c
@@ -1030,7 +1030,7 @@ xfs_dir_ialloc(
                         tp->t_flags &= ~(XFS_TRANS_DQ_DIRTY);
                 }
 
-                code = xfs_trans_roll(&tp, 0);
+                code = xfs_trans_roll(&tp, NULL);
                 if (committed != NULL)
                         *committed = 1;
 
diff --git a/fs/xfs/xfs_inode_item.c b/fs/xfs/xfs_inode_item.c
index c48b5b18d771..d02cbab18f45 100644
--- a/fs/xfs/xfs_inode_item.c
+++ b/fs/xfs/xfs_inode_item.c
@@ -479,6 +479,8 @@ STATIC uint
 xfs_inode_item_push(
         struct xfs_log_item     *lip,
         struct list_head        *buffer_list)
+                __releases(&lip->li_ailp->xa_lock)
+                __acquires(&lip->li_ailp->xa_lock)
 {
         struct xfs_inode_log_item *iip = INODE_ITEM(lip);
         struct xfs_inode        *ip = iip->ili_inode;