fat: gcc 4.3 warning fix

This patch fixes the following warnings.

fs/fat/dir.c: In function 'fat_parse_long':
include/linux/msdos_fs.h:294: warning: array subscript is above array bounds
include/linux/msdos_fs.h:295: warning: array subscript is above array bounds
include/linux/msdos_fs.h:295: warning: array subscript is above array bounds

The ->name is defined as "name[8], ext[3]", but fat_checksum() uses
those as name[11]. There is no actual problem, but it's not a good manner.

Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 479722d..cfaf587 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -354,8 +354,7 @@
 	} else { /* not a directory */
 		inode->i_generation |= 1;
 		inode->i_mode = MSDOS_MKMODE(de->attr,
-		    ((sbi->options.showexec &&
-			!is_exec(de->ext))
+		    ((sbi->options.showexec && !is_exec(de->name + 8))
 			? S_IRUGO|S_IWUGO : S_IRWXUGO)
 		    & ~sbi->options.fs_fmask) | S_IFREG;
 		MSDOS_I(inode)->i_start = le16_to_cpu(de->start);