linux-kernel - [PATCH] hugetlbfs: return negative error code for bad mount option

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Date:	Mon, 13 Apr 2009 12:56:23 +0900
From:	Akinobu Mita <akinobu.mita@...il.com>
To:	linux-kernel@...r.kernel.org
Cc:	William Irwin <wli@...omorphy.com>, linux-mm@...ck.org,
	linux-fsdevel@...r.kernel.org, stable@...nel.org
Subject: [PATCH] hugetlbfs: return negative error code for bad mount option

This fixes the following BUG:

# mount -o size=MM -t hugetlbfs none /huge
hugetlbfs: Bad value 'MM' for mount option 'size=MM'
------------[ cut here ]------------
kernel BUG at fs/super.c:996!

Also, remove unused #include <linux/quotaops.h>

Cc: William Irwin <wli@...omorphy.com>
Cc: stable@...nel.org
Signed-off-by: Akinobu Mita <akinobu.mita@...il.com>
---

diff --git a/fs/hugetlbfs/inode.c b/fs/hugetlbfs/inode.c
index 23a3c76..153d968 100644
--- a/fs/hugetlbfs/inode.c
+++ b/fs/hugetlbfs/inode.c
@@ -26,7 +26,6 @@
 #include <linux/pagevec.h>
 #include <linux/parser.h>
 #include <linux/mman.h>
-#include <linux/quotaops.h>
 #include <linux/slab.h>
 #include <linux/dnotify.h>
 #include <linux/statfs.h>
@@ -842,7 +841,7 @@ hugetlbfs_parse_options(char *options, struct hugetlbfs_config *pconfig)
 bad_val:
  	printk(KERN_ERR "hugetlbfs: Bad value '%s' for mount option '%s'\n",
 	       args[0].from, p);
- 	return 1;
+ 	return -EINVAL;
 }
 
 static int
--
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