Code cleanup:

- Removed not needed casts
- Indentation fixes
- Changed some buffer variables to uchar, to be able to remove casts


storage/maria/ma_bitmap.c:
  Removed not needed casts
storage/maria/ma_blockrec.c:
  Removed not needed casts
storage/maria/ma_check.c:
  Removed not needed casts.
  Changed type of buffers to be able to remove casts
storage/maria/ma_create.c:
  Removed not needed casts
storage/maria/ma_delete.c:
  Removed not needed casts
storage/maria/ma_dynrec.c:
  Removed not needed casts
storage/maria/ma_extra.c:
  Removed not needed casts
storage/maria/ma_ft_boolean_search.c:
  Removed not needed casts
storage/maria/ma_ft_nlq_search.c:
  Removed not needed casts
storage/maria/ma_ft_parser.c:
  Removed not needed casts
storage/maria/ma_loghandler.c:
  Removed not needed casts
storage/maria/ma_open.c:
  Removed not needed casts
storage/maria/ma_packrec.c:
  Removed not needed casts
storage/maria/ma_pagecache.c:
  Removed not needed casts
storage/maria/ma_preload.c:
  Removed not needed casts
  Removed not needed initialization
storage/maria/ma_rnext_same.c:
  Removed not needed casts
storage/maria/ma_rt_index.c:
  Removed not needed casts
storage/maria/ma_search.c:
  Removed not needed casts
storage/maria/ma_sort.c:
  Removed not needed casts
  Removed not needed if
  Fixed indentation
storage/maria/ma_statrec.c:
  Removed not needed casts
storage/maria/ma_test2.c:
  Removed not needed casts
storage/maria/ma_write.c:
  Removed not needed casts
  Indentation fixes
storage/maria/maria_chk.c:
  Removed not needed casts
storage/maria/maria_pack.c:
  Removed not needed casts

1 files changed, 2 insertions, 2 deletions

diff --git a/storage/maria/ma_preload.c b/storage/maria/ma_preload.c
index c453788ed49..84e0bcb2352 100644
--- a/storage/maria/ma_preload.c
+++ b/storage/maria/ma_preload.c
@@ -42,7 +42,7 @@
 int maria_preload(MARIA_HA *info, ulonglong key_map, my_bool ignore_leaves)
 {
   ulong block_length= 0;
-  uchar *buff= NULL;
+  uchar *buff;
   MARIA_SHARE* share= info->s;
   uint keynr;
   my_off_t key_file_length= share->state.state.key_file_length;
@@ -84,7 +84,7 @@ int maria_preload(MARIA_HA *info, ulonglong key_map, my_bool ignore_leaves)
       consecutive pages (like the my_pread() in mi_preload()).
     */
     if (pagecache_read(share->pagecache, &share->kfile, page_no,
-                       DFLT_INIT_HITS, (uchar*) buff, share->page_type,
+                       DFLT_INIT_HITS, buff, share->page_type,
                        PAGECACHE_LOCK_WRITE, &page_link) == NULL)
       goto err;
     keynr= _ma_get_keynr(share, buff);