From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Takashi Iwai , Sasha Levin Subject: [PATCH 4.4 34/59] ALSA: vx: Dont try to update capture stream before running Date: Sun, 19 Nov 2017 15:32:42 +0100 Message-Id: <20171119143152.498573020@linuxfoundation.org> In-Reply-To: <20171119143150.964013720@linuxfoundation.org> References: <20171119143150.964013720@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-kernel-owner@vger.kernel.org List-ID: 4.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Takashi Iwai [ Upstream commit ed3c177d960bb5881b945ca6f784868126bb90db ] The update of stream costs significantly, and we should avoid it unless the stream really has started. Check pipe->running flag instead of pipe->prepared. Signed-off-by: Takashi Iwai Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- sound/drivers/vx/vx_pcm.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/sound/drivers/vx/vx_pcm.c +++ b/sound/drivers/vx/vx_pcm.c @@ -1015,7 +1015,7 @@ static void vx_pcm_capture_update(struct int size, space, count; struct snd_pcm_runtime *runtime = subs->runtime; - if (! pipe->prepared || (chip->chip_status & VX_STAT_IS_STALE)) + if (!pipe->running || (chip->chip_status & VX_STAT_IS_STALE)) return; size = runtime->buffer_size - snd_pcm_capture_avail(runtime);