[PATCH] FAT: fat_readdirx() with dotOK=yes fix

In the case of dotsOK, re-initialization of "ptname" pointer is needed,
otherwise, "ptname" is pointing the previous start position.

This fixes it.
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

fs/fat/dir.c

@@ -442,10 +442,14 @@ static int fat_readdirx(struct inode *inode, struct file *filp, void *dirent,
 			long_slots = 0;
 	}
 
-	if ((de->attr & ATTR_HIDDEN) && MSDOS_SB(sb)->options.dotsOK) {
+	if (MSDOS_SB(sb)->options.dotsOK) {
+		ptname = bufname;
+		dotoffset = 0;
+		if (de->attr & ATTR_HIDDEN) {
 			*ptname++ = '.';
 			dotoffset = 1;
 		}
+	}
 
 	memcpy(work, de->name, sizeof(de->name));
 	/* see namei.c, msdos_format_name */