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Diffstat (limited to 'fs/hfsplus/xattr_user.c')
-rw-r--r--fs/hfsplus/xattr_user.c32
1 files changed, 20 insertions, 12 deletions
diff --git a/fs/hfsplus/xattr_user.c b/fs/hfsplus/xattr_user.c
index e34016561ae0..2b625a538b64 100644
--- a/fs/hfsplus/xattr_user.c
+++ b/fs/hfsplus/xattr_user.c
@@ -6,43 +6,51 @@
* Handler for user extended attributes.
*/
+#include <linux/nls.h>
+
#include "hfsplus_fs.h"
#include "xattr.h"
static int hfsplus_user_getxattr(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ res = hfsplus_getxattr(dentry, xattr_name, buffer, size);
+ kfree(xattr_name);
+ return res;
}
static int hfsplus_user_setxattr(struct dentry *dentry, const char *name,
const void *buffer, size_t size, int flags, int type)
{
- char xattr_name[HFSPLUS_ATTR_MAX_STRLEN + 1] = {0};
- size_t len = strlen(name);
+ char *xattr_name;
+ int res;
if (!strcmp(name, ""))
return -EINVAL;
- if (len + XATTR_USER_PREFIX_LEN > HFSPLUS_ATTR_MAX_STRLEN)
- return -EOPNOTSUPP;
-
+ xattr_name = kmalloc(NLS_MAX_CHARSET_SIZE * HFSPLUS_ATTR_MAX_STRLEN + 1,
+ GFP_KERNEL);
+ if (!xattr_name)
+ return -ENOMEM;
strcpy(xattr_name, XATTR_USER_PREFIX);
strcpy(xattr_name + XATTR_USER_PREFIX_LEN, name);
- return hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ res = hfsplus_setxattr(dentry, xattr_name, buffer, size, flags);
+ kfree(xattr_name);
+ return res;
}
static size_t hfsplus_user_listxattr(struct dentry *dentry, char *list,