From: Takashi Iwai <tiwai@suse.de>
Date: Wed, 11 Mar 2015 17:12:49 +0000 (+0100)
Subject: ALSA: control: Add sanity checks for user ctl id name string
X-Git-Tag: v3.2.69~92
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0501b7e487eb6870f46e80275ab4cde3829baeea;p=pandora-kernel.git

ALSA: control: Add sanity checks for user ctl id name string

commit be3bb8236db2d0fcd705062ae2e2a9d75131222f upstream.

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.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
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