diff options
| author | Takashi Iwai <tiwai@suse.de> | 2020-11-23 09:53:27 +0100 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-11-23 15:14:36 +0100 |
| commit | 57234bc1038517437d5c589595caf77b2118529e (patch) | |
| tree | 338117bd31306f490d543ae740d56f34be7aa7ce /sound/usb/endpoint.c | |
| parent | 73037c8dc1c8cf994a38fedba4a5af7e6da5e4f1 (diff) | |
ALSA: usb-audio: Stop both endpoints properly at error
start_endpoints() may leave the data endpoint running if an error
happens at starting the sync endpoint. We should stop both streams
properly, instead.
While we're at it, move the debug prints into the endpoint.c that is a
more suitable place.
Tested-by: Keith Milner <kamilner@superlative.org>
Tested-by: Dylan Robinson <dylan_robinson@motu.com>
Link: https://lore.kernel.org/r/20201123085347.19667-22-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/usb/endpoint.c')
| -rw-r--r-- | sound/usb/endpoint.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/usb/endpoint.c b/sound/usb/endpoint.c index eb459db511f8..0cc7e9c01263 100644 --- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -1172,6 +1172,9 @@ int snd_usb_endpoint_start(struct snd_usb_endpoint *ep) if (atomic_read(&ep->chip->shutdown)) return -EBADFD; + usb_audio_dbg(ep->chip, "Starting %s EP 0x%x (count %d)\n", + ep_type_name(ep->type), ep->ep_num, ep->use_count); + /* already running? */ if (++ep->use_count != 1) return 0; @@ -1254,6 +1257,9 @@ void snd_usb_endpoint_stop(struct snd_usb_endpoint *ep) if (!ep) return; + usb_audio_dbg(ep->chip, "Stopping %s EP 0x%x (count %d)\n", + ep_type_name(ep->type), ep->ep_num, ep->use_count); + if (snd_BUG_ON(ep->use_count == 0)) return; |