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sound fixes for 4.10 

here is the last-minute fixes for 4.10 final (or -rc8): 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.
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Merge tag 'sound-4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/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()
This commit is contained in:
Linus Torvalds 2017-02-10 14:29:30 -08:00
parent 7fe654dca2 af677166cf
commit 1f369d1655
4 changed files with 24 additions and 22 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
sound/core/seq/seq_memory.c
View File

@ -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;
@ -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);

33
sound/core/seq/seq_queue.c
View File

@ -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
*/
@ -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;
}
@ -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++;
@ -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;

1
sound/pci/hda/patch_hdmi.c
View File

@ -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),

3
sound/usb/line6/driver.c
View File

@ -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;