Commits
Takashi Sakamoto committed c8de6dbbbb4
ALSA: firewire-lib: Restrict calling flush_context_completion() when context exists Currently, drivers can bring XRUN state for PCM substreams when error to queue packets or detecting discontinuity of packet. The application may try to recover this state by calling snd_pcm_prepare(). Depending on each driver, .prepare() includes restart streaming. Then there is a state that PCM substreams are running but isochronous contexts are stopped. In this case, when .pointer() is called, it refers to error pointer. This commit is for a prevention of this bug. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Signed-off-by: Takashi Iwai <tiwai@suse.de>