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sound fixes for 5.3-rc3

Browse Source 
- A further fix for syzcaller issues with USB-audio, addressing
   NULL dereference that was introduced by the recent fix
 - Avoid a long delay at boot with HD-audio when i915 module was
   built but not installed, found on some Debian systems
 - A fix of small race window at PCM draining
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Merge tag 'sound-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:

 - A further fix for syzcaller issues with USB-audio, addressing NULL
   dereference that was introduced by the recent fix

 - Avoid a long delay at boot with HD-audio when i915 module was built
   but not installed, found on some Debian systems

 - A fix of small race window at PCM draining

* tag 'sound-5.3-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: usb-audio: Fix gpf in snd_usb_pipe_sanity_check
  ALSA: pcm: fix lost wakeup event scenarios in snd_pcm_drain
  ALSA: hda: Fix 1-minute detection delay when i915 module is not available
This commit is contained in:
Linus Torvalds 2019-08-02 08:53:34 -07:00
commit 75cdf416b3
3 changed files with 9 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
sound/core/pcm_native.c
View File

@ -1873,6 +1873,7 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
if (!to_check)
break; /* all drained */
init_waitqueue_entry(&wait, current);
set_current_state(TASK_INTERRUPTIBLE);
add_wait_queue(&to_check->sleep, &wait);
snd_pcm_stream_unlock_irq(substream);
if (runtime->no_period_wakeup)
@ -1885,7 +1886,7 @@ static int snd_pcm_drain(struct snd_pcm_substream *substream,
}
tout = msecs_to_jiffies(tout * 1000);
}
tout = schedule_timeout_interruptible(tout);
tout = schedule_timeout(tout);
snd_pcm_stream_lock_irq(substream);
group = snd_pcm_stream_group_ref(substream);

10
sound/hda/hdac_i915.c
View File

@ -136,10 +136,12 @@ int snd_hdac_i915_init(struct hdac_bus *bus)
if (!acomp)
return -ENODEV;
if (!acomp->ops) {
request_module("i915");
/* 60s timeout */
wait_for_completion_timeout(&bind_complete,
msecs_to_jiffies(60 * 1000));
if (!IS_ENABLED(CONFIG_MODULES) ||
!request_module("i915")) {
/* 60s timeout */
wait_for_completion_timeout(&bind_complete,
msecs_to_jiffies(60 * 1000));
}
}
if (!acomp->ops) {
dev_info(bus->dev, "couldn't bind with audio component\n");

2
sound/usb/helper.c
View File

@ -72,7 +72,7 @@ int snd_usb_pipe_sanity_check(struct usb_device *dev, unsigned int pipe)
struct usb_host_endpoint *ep;
ep = usb_pipe_endpoint(dev, pipe);
if (usb_pipetype(pipe) != pipetypes[usb_endpoint_type(&ep->desc)])
if (!ep || usb_pipetype(pipe) != pipetypes[usb_endpoint_type(&ep->desc)])
return -EINVAL;
return 0;
}