From c6c20372bbb2f70d2757eed0a8d6860884bae11f Mon Sep 17 00:00:00 2001
From: Dave Reisner <dreisner@archlinux.org>
Date: Mon, 17 Dec 2012 16:03:01 -0800
Subject: [PATCH] fs/fat: strip "cp" prefix from codepage in display
Option parsing code expects an unsigned integer for the codepage option,
but prefixes and stores this option with "cp" before passing to
load_nls(). This makes the displayed option in /proc an invalid one.
Strip the prefix when printing so that the displayed option is valid for
reuse.
Signed-off-by: Dave Reisner <dreisner@archlinux.org>
Acked-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>
---
fs/fat/inode.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 3b733a730952d..35806813ea4ee 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -726,7 +726,8 @@ static int fat_show_options(struct seq_file *m, struct dentry *root)
if (opts->allow_utime)
seq_printf(m, ",allow_utime=%04o", opts->allow_utime);
if (sbi->nls_disk)
- seq_printf(m, ",codepage=%s", sbi->nls_disk->charset);
+ /* strip "cp" prefix from displayed option */
+ seq_printf(m, ",codepage=%s", &sbi->nls_disk->charset[2]);
if (isvfat) {
if (sbi->nls_io)
seq_printf(m, ",iocharset=%s", sbi->nls_io->charset);
--
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