[XFS] use NULL for pointer initialisation instead of zero-cast-to-ptr

SGI-PV: 954580
SGI-Modid: xfs-linux-melb:xfs-kern:26562a

Signed-off-by: Nathan Scott <nathans@sgi.com>
Signed-off-by: Tim Shimmin <tes@sgi.com>

4 files changed, 15 insertions, 15 deletions

diff --git a/fs/xfs/xfs_alloc_btree.c b/fs/xfs/xfs_alloc_btree.c
index ec0bbd4140e4..500a1d75403a 100644
--- a/fs/xfs/xfs_alloc_btree.c
+++ b/fs/xfs/xfs_alloc_btree.c
@@ -670,7 +670,7 @@ xfs_alloc_insrec(
         }
 #endif
         nbno = NULLAGBLOCK;
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         /*
          * If the block is full, we can't insert the new entry until we
          * make the block un-full.
@@ -981,7 +981,7 @@ xfs_alloc_lookup(
                  */
                 bp = cur->bc_bufs[level];
                 if (bp && XFS_BUF_ADDR(bp) != d)
-                        bp = (xfs_buf_t *)0;
+                        bp = NULL;
                 if (!bp) {
                         /*
                          * Need to get a new buffer.  Read it, then
@@ -2044,7 +2044,7 @@ xfs_alloc_insert(
         nbno = NULLAGBLOCK;
         nrec.ar_startblock = cpu_to_be32(cur->bc_rec.a.ar_startblock);
         nrec.ar_blockcount = cpu_to_be32(cur->bc_rec.a.ar_blockcount);
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         pcur = cur;
         /*
          * Loop going up the tree, starting at the leaf level.
@@ -2076,7 +2076,7 @@ xfs_alloc_insert(
                  */
                 if (ncur) {
                         pcur = ncur;
-                        ncur = (xfs_btree_cur_t *)0;
+                        ncur = NULL;
                 }
         } while (nbno != NULLAGBLOCK);
         *stat = i;
diff --git a/fs/xfs/xfs_bmap_btree.c b/fs/xfs/xfs_bmap_btree.c
index aab8e3f06aca..a7b835bf870a 100644
--- a/fs/xfs/xfs_bmap_btree.c
+++ b/fs/xfs/xfs_bmap_btree.c
@@ -352,7 +352,7 @@ xfs_bmbt_delrec(
         XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
         XFS_BMBT_TRACE_ARGI(cur, level);
         ptr = cur->bc_ptrs[level];
-        tcur = (xfs_btree_cur_t *)0;
+        tcur = NULL;
         if (ptr == 0) {
                 XFS_BMBT_TRACE_CURSOR(cur, EXIT);
                 *stat = 0;
@@ -755,7 +755,7 @@ xfs_bmbt_insrec(
         ASSERT(level < cur->bc_nlevels);
         XFS_BMBT_TRACE_CURSOR(cur, ENTRY);
         XFS_BMBT_TRACE_ARGIFR(cur, level, *bnop, recp);
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         key.br_startoff = cpu_to_be64(xfs_bmbt_disk_get_startoff(recp));
         optr = ptr = cur->bc_ptrs[level];
         if (ptr == 0) {
@@ -1126,7 +1126,7 @@ xfs_bmbt_lookup(
                         d = XFS_FSB_TO_DADDR(mp, fsbno);
                         bp = cur->bc_bufs[level];
                         if (bp && XFS_BUF_ADDR(bp) != d)
-                                bp = (xfs_buf_t *)0;
+                                bp = NULL;
                         if (!bp) {
                                 if ((error = xfs_btree_read_bufl(mp, tp, fsbno,
                                                 0, &bp, XFS_BMAP_BTREE_REF))) {
@@ -2170,7 +2170,7 @@ xfs_bmbt_insert(
         level = 0;
         nbno = NULLFSBLOCK;
         xfs_bmbt_disk_set_all(&nrec, &cur->bc_rec.b);
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         pcur = cur;
         do {
                 if ((error = xfs_bmbt_insrec(pcur, level++, &nbno, &nrec, &ncur,
@@ -2197,7 +2197,7 @@ xfs_bmbt_insert(
                 }
                 if (ncur) {
                         pcur = ncur;
-                        ncur = (xfs_btree_cur_t *)0;
+                        ncur = NULL;
                 }
         } while (nbno != NULLFSBLOCK);
         XFS_BMBT_TRACE_CURSOR(cur, EXIT);
diff --git a/fs/xfs/xfs_ialloc.c b/fs/xfs/xfs_ialloc.c
index 1a5e3ff33efd..76813d608dea 100644
--- a/fs/xfs/xfs_ialloc.c
+++ b/fs/xfs/xfs_ialloc.c
@@ -458,7 +458,7 @@ nextag:
                  */
                 if (XFS_FORCED_SHUTDOWN(mp)) {
                         up_read(&mp->m_peraglock);
-                        return (xfs_buf_t *)0;
+                        return NULL;
                 }
                 agno++;
                 if (agno >= agcount)
@@ -466,7 +466,7 @@ nextag:
                 if (agno == pagno) {
                         if (flags == 0) {
                                 up_read(&mp->m_peraglock);
-                                return (xfs_buf_t *)0;
+                                return NULL;
                         }
                         flags = 0;
                 }
diff --git a/fs/xfs/xfs_ialloc_btree.c b/fs/xfs/xfs_ialloc_btree.c
index 9b6de4c2c2bb..8cdeeaf8632b 100644
--- a/fs/xfs/xfs_ialloc_btree.c
+++ b/fs/xfs/xfs_ialloc_btree.c
@@ -600,7 +600,7 @@ xfs_inobt_insrec(
         }
 #endif
         nbno = NULLAGBLOCK;
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         /*
          * If the block is full, we can't insert the new entry until we
          * make the block un-full.
@@ -878,7 +878,7 @@ xfs_inobt_lookup(
                  */
                 bp = cur->bc_bufs[level];
                 if (bp && XFS_BUF_ADDR(bp) != d)
-                        bp = (xfs_buf_t *)0;
+                        bp = NULL;
                 if (!bp) {
                         /*
                          * Need to get a new buffer.  Read it, then
@@ -1933,7 +1933,7 @@ xfs_inobt_insert(
         nrec.ir_startino = cpu_to_be32(cur->bc_rec.i.ir_startino);
         nrec.ir_freecount = cpu_to_be32(cur->bc_rec.i.ir_freecount);
         nrec.ir_free = cpu_to_be64(cur->bc_rec.i.ir_free);
-        ncur = (xfs_btree_cur_t *)0;
+        ncur = NULL;
         pcur = cur;
         /*
          * Loop going up the tree, starting at the leaf level.
@@ -1965,7 +1965,7 @@ xfs_inobt_insert(
                  */
                 if (ncur) {
                         pcur = ncur;
-                        ncur = (xfs_btree_cur_t *)0;
+                        ncur = NULL;
                 }
         } while (nbno != NULLAGBLOCK);
         *stat = i;