On Fri, 01 Sep 2017 06:34:48 +0200, Kuninori Morimoto wrote: > > > From: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> > > Driver should stop all working stream when .remove timing. > Current Renesas sound driver is assuming that all stream was > stopped when .remove but it was wrong. > This patch stops all working stream when .remove, otherwise > kernel will get damage for example in below case. > Special thanks to Truong, Hiep > > > cd /sys/bus/platform/drivers/rcar_sound > > aplay xxx.wav & > > echo ec500000.sound > unbind > > Reported-by: Hiep Cao Minh <cm-hiep@xxxxxxxxxxx> > Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx> The lack of stop sync is a known problem in the ALSA PCM infrastructure. The standard idiom is to do sync at both prepare and hw_free (or close) callbacks. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
