xfs: fix some minor sparse warnings

A couple of simple locking annotations and 0 vs NULL warnings.
Nothing that changes any code behaviour, just removes build noise.

Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Ben Myers <bpm@sgi.com>

6 files changed, 11 insertions, 7 deletions

diff --git a/fs/xfs/xfs_bmap.c b/fs/xfs/xfs_bmap.c
index 92b830901d60..f47e65c30be6 100644
--- a/fs/xfs/xfs_bmap.c
+++ b/fs/xfs/xfs_bmap.c
@@ -4450,7 +4450,7 @@ xfs_bmapi_write(
 {
         struct xfs_mount        *mp = ip->i_mount;
         struct xfs_ifork        *ifp;
-        struct xfs_bmalloca     bma = { 0 };    /* args for xfs_bmap_alloc */
+        struct xfs_bmalloca     bma = { NULL }; /* args for xfs_bmap_alloc */
         xfs_fileoff_t           end;            /* end of mapped file region */
         int                     eof;            /* after the end of extents */
         int                     error;          /* error return */
diff --git a/fs/xfs/xfs_dquot_item.c b/fs/xfs/xfs_dquot_item.c
index 60c6e1f12695..e838d84b4e85 100644
--- a/fs/xfs/xfs_dquot_item.c
+++ b/fs/xfs/xfs_dquot_item.c
@@ -142,7 +142,8 @@ xfs_qm_dqunpin_wait(
 STATIC uint
 xfs_qm_dquot_logitem_push(
         struct xfs_log_item     *lip,
-        struct list_head        *buffer_list)
+        struct list_head        *buffer_list) __releases(&lip->li_ailp->xa_lock)
+                                              __acquires(&lip->li_ailp->xa_lock)
 {
         struct xfs_dquot        *dqp = DQUOT_ITEM(lip)->qli_dquot;
         struct xfs_buf          *bp = NULL;
diff --git a/fs/xfs/xfs_extent_busy.c b/fs/xfs/xfs_extent_busy.c
index 86f559f6e5d3..e43708e2f080 100644
--- a/fs/xfs/xfs_extent_busy.c
+++ b/fs/xfs/xfs_extent_busy.c
@@ -160,7 +160,8 @@ xfs_extent_busy_update_extent(
         struct xfs_extent_busy  *busyp,
         xfs_agblock_t           fbno,
         xfs_extlen_t            flen,
-        bool                    userdata)
+        bool                    userdata) __releases(&pag->pagb_lock)
+                                          __acquires(&pag->pagb_lock)
 {
         xfs_agblock_t           fend = fbno + flen;
         xfs_agblock_t           bbno = busyp->bno;
diff --git a/fs/xfs/xfs_ioctl.c b/fs/xfs/xfs_ioctl.c
index bdebc21078d7..21d9c9df9fb7 100644
--- a/fs/xfs/xfs_ioctl.c
+++ b/fs/xfs/xfs_ioctl.c
@@ -71,7 +71,7 @@ xfs_find_handle(
         int                     hsize;
         xfs_handle_t            handle;
         struct inode            *inode;
-        struct fd               f = {0};
+        struct fd               f = {NULL};
         struct path             path;
         int                     error;
         struct xfs_inode        *ip;
diff --git a/fs/xfs/xfs_itable.c b/fs/xfs/xfs_itable.c
index b93e14b86754..8a67d53b9b7a 100644
--- a/fs/xfs/xfs_itable.c
+++ b/fs/xfs/xfs_itable.c
@@ -541,8 +541,9 @@ xfs_bulkstat_single(
          * at the expense of the error case.
          */
 
-        ino = (xfs_ino_t)*lastinop;
-        error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t), 0, &res);
+        ino = *lastinop;
+        error = xfs_bulkstat_one(mp, ino, buffer, sizeof(xfs_bstat_t),
+                                 NULL, &res);
         if (error) {
                 /*
                  * Special case way failed, do it the "long" way
diff --git a/fs/xfs/xfs_log.c b/fs/xfs/xfs_log.c
index 5372d58ef93a..a2dea108071a 100644
--- a/fs/xfs/xfs_log.c
+++ b/fs/xfs/xfs_log.c
@@ -257,7 +257,8 @@ xlog_grant_head_wait(
         struct xlog             *log,
         struct xlog_grant_head  *head,
         struct xlog_ticket      *tic,
-        int                     need_bytes)
+        int                     need_bytes) __releases(&head->lock)
+                                            __acquires(&head->lock)
 {
         list_add_tail(&tic->t_queue, &head->waiters);