From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Wed, 11 Feb 2015 15:10:54 +0000 (+0300)
Subject: ALSA: seq: potential out of bounds in do_control()
X-Git-Tag: omap-for-v4.1/prcm-dts-mfd-syscon-fix~19^2~6
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=0b444af8daf9cd28264aa3c85587c0c8601208ba;p=pandora-kernel.git

ALSA: seq: potential out of bounds in do_control()

Smatch complains that "control" is user specifigy and needs to be
capped.  The call tree to understand this warning is quite long.

snd_seq_write()  <-- get the event from the user
  snd_seq_client_enqueue_event()
    snd_seq_deliver_event()
      deliver_to_subscribers()
        snd_seq_deliver_single_event()
          snd_opl3_oss_event_input()
            snd_midi_process_event()
              do_control()

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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