From: Dave Reisner <dreisner@archlinux.org>
Date: Tue, 18 Dec 2012 00:03:01 +0000 (-0800)
Subject: fs/fat: strip "cp" prefix from codepage in display
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=c6c20372bbb2f70d2757eed0a8d6860884bae11f;p=GitHub%2Fexynos8895%2Fandroid_kernel_samsung_universal8895.git

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>
---

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 3b733a730952..35806813ea4e 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);