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Merge tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/g…
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…it/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "Here are some last-minute fixes: two fixes for races in ALSA sequencer
  queue spotted by syzkaller, a revert for a regression of LINE6 driver
  (since 4.9), and a trivial new codec ID addition for Nvidia HDMI"

* tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - adding a new NV HDMI/DP codec ID in the driver
  ALSA: seq: Fix race at creating a queue
  Revert "ALSA: line6: Only determine control port properties if needed"
  ALSA: seq: Don't handle loop timeout at snd_seq_pool_done()
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Linus Torvalds committed Feb 10, 2017
2 parents 7fe654d + af67716 commit 1f369d1
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Showing 4 changed files with 24 additions and 22 deletions.
9 changes: 1 addition & 8 deletions sound/core/seq/seq_memory.c
Original file line number Diff line number Diff line change
Expand Up @@ -419,7 +419,6 @@ int snd_seq_pool_done(struct snd_seq_pool *pool)
{
unsigned long flags;
struct snd_seq_event_cell *ptr;
int max_count = 5 * HZ;

if (snd_BUG_ON(!pool))
return -EINVAL;
Expand All @@ -432,14 +431,8 @@ int snd_seq_pool_done(struct snd_seq_pool *pool)
if (waitqueue_active(&pool->output_sleep))
wake_up(&pool->output_sleep);

while (atomic_read(&pool->counter) > 0) {
if (max_count == 0) {
pr_warn("ALSA: snd_seq_pool_done timeout: %d cells remain\n", atomic_read(&pool->counter));
break;
}
while (atomic_read(&pool->counter) > 0)
schedule_timeout_uninterruptible(1);
max_count--;
}

/* release all resources */
spin_lock_irqsave(&pool->lock, flags);
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33 changes: 20 additions & 13 deletions sound/core/seq/seq_queue.c
Original file line number Diff line number Diff line change
Expand Up @@ -181,6 +181,8 @@ void __exit snd_seq_queues_delete(void)
}
}

static void queue_use(struct snd_seq_queue *queue, int client, int use);

/* allocate a new queue -
* return queue index value or negative value for error
*/
Expand All @@ -192,11 +194,11 @@ int snd_seq_queue_alloc(int client, int locked, unsigned int info_flags)
if (q == NULL)
return -ENOMEM;
q->info_flags = info_flags;
queue_use(q, client, 1);
if (queue_list_add(q) < 0) {
queue_delete(q);
return -ENOMEM;
}
snd_seq_queue_use(q->queue, client, 1); /* use this queue */
return q->queue;
}

Expand Down Expand Up @@ -502,19 +504,9 @@ int snd_seq_queue_timer_set_tempo(int queueid, int client,
return result;
}


/* use or unuse this queue -
* if it is the first client, starts the timer.
* if it is not longer used by any clients, stop the timer.
*/
int snd_seq_queue_use(int queueid, int client, int use)
/* use or unuse this queue */
static void queue_use(struct snd_seq_queue *queue, int client, int use)
{
struct snd_seq_queue *queue;

queue = queueptr(queueid);
if (queue == NULL)
return -EINVAL;
mutex_lock(&queue->timer_mutex);
if (use) {
if (!test_and_set_bit(client, queue->clients_bitmap))
queue->clients++;
Expand All @@ -529,6 +521,21 @@ int snd_seq_queue_use(int queueid, int client, int use)
} else {
snd_seq_timer_close(queue);
}
}

/* use or unuse this queue -
* if it is the first client, starts the timer.
* if it is not longer used by any clients, stop the timer.
*/
int snd_seq_queue_use(int queueid, int client, int use)
{
struct snd_seq_queue *queue;

queue = queueptr(queueid);
if (queue == NULL)
return -EINVAL;
mutex_lock(&queue->timer_mutex);
queue_use(queue, client, use);
mutex_unlock(&queue->timer_mutex);
queuefree(queue);
return 0;
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1 change: 1 addition & 0 deletions sound/pci/hda/patch_hdmi.c
Original file line number Diff line number Diff line change
Expand Up @@ -3639,6 +3639,7 @@ HDA_CODEC_ENTRY(0x10de0070, "GPU 70 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de0071, "GPU 71 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de0072, "GPU 72 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de007d, "GPU 7d HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de0080, "GPU 80 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de0082, "GPU 82 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de0083, "GPU 83 HDMI/DP", patch_nvhdmi),
HDA_CODEC_ENTRY(0x10de8001, "MCP73 HDMI", patch_nvhdmi_2ch),
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3 changes: 2 additions & 1 deletion sound/usb/line6/driver.c
Original file line number Diff line number Diff line change
Expand Up @@ -754,8 +754,9 @@ int line6_probe(struct usb_interface *interface,
goto error;
}

line6_get_interval(line6);

if (properties->capabilities & LINE6_CAP_CONTROL) {
line6_get_interval(line6);
ret = line6_init_cap_control(line6);
if (ret < 0)
goto error;
Expand Down

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