From: Takashi Iwai tiwai@suse.de
commit 23939115be181bc5dbc33aa8471adcdbffa28910 upstream.
The commit d215f63d49da ("ALSA: usb-audio: Check available frames for the next packet size") introduced the available frame size check, but the conversion forgot to initialize the temporary variable properly, and it resulted in a bogus calculation. This patch fixes it.
Fixes: d215f63d49da ("ALSA: usb-audio: Check available frames for the next packet size") Reported-by: Colin Ian King colin.king@canonical.com Link: https://lore.kernel.org/r/20211001104417.14291-1-colin.king@canonical.com Link: https://lore.kernel.org/r/20211001105425.16191-1-tiwai@suse.de Signed-off-by: Takashi Iwai tiwai@suse.de Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- sound/usb/endpoint.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
--- a/sound/usb/endpoint.c +++ b/sound/usb/endpoint.c @@ -182,7 +182,7 @@ static int next_packet_size(struct snd_u if (ep->fill_max) return ep->maxframesize;
- sample_accum += ep->sample_rem; + sample_accum = ep->sample_accum + ep->sample_rem; if (sample_accum >= ep->pps) { sample_accum -= ep->pps; ret = ep->packsize[1];