linux-kernel - Re: [PATCH v3 2/3] ASoC: enable interrupt after dma buffer initialization

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Message-ID: <20180913113126.GB8411@sirena.org.uk>
Date:   Thu, 13 Sep 2018 12:31:26 +0100
From:   Mark Brown <broonie@...nel.org>
To:     Yu Zhao <yuzhao@...gle.com>
Cc:     Takashi Iwai <tiwai@...e.com>, Jaroslav Kysela <perex@...ex.cz>,
        Vinod Koul <vkoul@...nel.org>,
        Rakesh Ughreja <rakesh.a.ughreja@...el.com>,
        alsa-devel@...a-project.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/3] ASoC: enable interrupt after dma buffer
 initialization

On Wed, Sep 12, 2018 at 01:44:41PM -0600, Yu Zhao wrote:
> In snd_hdac_bus_init_chip(), we enable interrupt before
> snd_hdac_bus_init_cmd_io() initializing dma buffers. If irq has
> been acquired and irq handler uses the dma buffer, kernel may crash
> when interrupt comes in.

> ---
>  sound/hda/hdac_controller.c | 8 ++++++--
>  1 file changed, 6 insertions(+), 2 deletions(-)

This is an ALSA commit, not an ASoC one.

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