ubifs: Fix xattr generic handler usage

UBIFS uses full names to work with xattrs, therefore we have to use
xattr_full_name() to obtain the xattr prefix as string.

Cc: <stable@vger.kernel.org>
Cc: Andreas Gruenbacher <agruenba@redhat.com>
Fixes: 2b88fc21ca ("ubifs: Switch to generic xattr handlers")
Signed-off-by: Richard Weinberger <richard@nod.at>
Reviewed-by: Andreas Gruenbacher <agruenba@redhat.com>
Tested-by: Dongsheng Yang <dongsheng081251@gmail.com>

diff --git a/fs/ubifs/xattr.c b/fs/ubifs/xattr.c
index e237811..11a0041 100644 (file)
--- a/fs/ubifs/xattr.c
+++ b/fs/ubifs/xattr.c
@@ -575,7 +575,8 @@ static int ubifs_xattr_get(const struct xattr_handler *handler,
        dbg_gen("xattr '%s', ino %lu ('%pd'), buf size %zd", name,
                inode->i_ino, dentry, size);
 
-       return  __ubifs_getxattr(inode, name, buffer, size);
+       name = xattr_full_name(handler, name);
+       return __ubifs_getxattr(inode, name, buffer, size);
 }
 
 static int ubifs_xattr_set(const struct xattr_handler *handler,
@@ -586,6 +587,8 @@ static int ubifs_xattr_set(const struct xattr_handler *handler,
        dbg_gen("xattr '%s', host ino %lu ('%pd'), size %zd",
                name, inode->i_ino, dentry, size);
 
+       name = xattr_full_name(handler, name);
+
        if (value)
                return __ubifs_setxattr(inode, name, value, size, flags);
        else