Orangefs: Extra sanity insurance on buffer before using string functions on it.

		ret = copy_from_user(&client_debug_array_string,

				     (void __user *)arg,

				     ORANGEFS_MAX_DEBUG_STRING_LEN);

		/*

		 * The real client-core makes an effort to ensure

		 * that actual strings that aren't too long to fit in

		 * this buffer is what we get here. We're going to use

		 * string functions on the stuff we got, so we'll make

		 * this extra effort to try and keep from

		 * flowing out of this buffer when we use the string

		 * functions, even if somehow the stuff we end up

		 * with here is garbage.

		 */

		client_debug_array_string[ORANGEFS_MAX_DEBUG_STRING_LEN - 1] =

			'\0';

		if (ret != 0) {

			pr_info("%s: CLIENT_STRING: copy_from_user failed\n",

				__func__);