Merge tag 'sound-fix-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are lots of small fixes that have been collected since the
  previous pull.  This time, not only trivial ones but fixes for some
  serious bugs are included:

   - Fix for CPU lockups by snd-hrtimer accesses
   - Fix for unsafe disconnection handling in ALSA timer code
   - Fix for Oops due to race at HD-audio module removal
   - Fixes for possible memory corruption via 32bit PCM and sequencer
     compat ioctls
   - Fix for regression in HD-audio generic model handling
   - Suppress kernel warnings for invalid TLV ioctls that may flood up
   - Fix the missing SSC clock handling for at73c213
   - A pin fixup for ASUS N550JX"

* tag 'sound-fix-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: timer: Introduce disconnect op to snd_timer_instance
  ALSA: timer: Handle disconnection more safely
  ALSA: hda - Flush the pending probe work at remove
  ALSA: hda - Fix missing module loading with model=generic option
  ALSA: hda - Degrade i915 binding failure message
  ALSA: at73c213: manage SSC clock
  ALSA: control: Avoid kernel warnings from tlv ioctl with numid 0
  ALSA: seq: Fix snd_seq_call_port_info_ioctl in compat mode
  ALSA: pcm: Fix snd_pcm_hw_params struct copy in compat mode
  ALSA: hrtimer: Fix stall by hrtimer_cancel()
  ALSA: hda - Fix bass pin fixup for ASUS N550JX

1 files changed, 5 insertions, 4 deletions

diff --git a/sound/core/seq/seq_compat.c b/sound/core/seq/seq_compat.c
index 81f7c109dc46..65175902a68a 100644
--- a/sound/core/seq/seq_compat.c
+++ b/sound/core/seq/seq_compat.c
@@ -49,11 +49,12 @@ static int snd_seq_call_port_info_ioctl(struct snd_seq_client *client, unsigned
 	struct snd_seq_port_info *data;
 	mm_segment_t fs;
 
-	data = memdup_user(data32, sizeof(*data32));
-	if (IS_ERR(data))
-		return PTR_ERR(data);
+	data = kmalloc(sizeof(*data), GFP_KERNEL);
+	if (!data)
+		return -ENOMEM;
 
-	if (get_user(data->flags, &data32->flags) ||
+	if (copy_from_user(data, data32, sizeof(*data32)) ||
+	    get_user(data->flags, &data32->flags) ||
 	    get_user(data->time_queue, &data32->time_queue))
 		goto error;
 	data->kernel = NULL;