From be3bb8236db2d0fcd705062ae2e2a9d75131222f Mon Sep 17 00:00:00 2001
From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 11 Mar 2015 18:12:49 +0100
Subject: [PATCH] ALSA: control: Add sanity checks for user ctl id name string

There was no check about the id string of user control elements, so we
accepted even a control element with an empty string, which is
obviously bogus.  This patch adds more sanity checks of id strings.

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
---
Reading git-format-patch failed