From: Sylwester Nawrocki <s.nawrocki@samsung.com>
To: Charles Keepax <ckeepax@opensource.cirrus.com>
Cc: Krzysztof Kozlowski <krzk@kernel.org>,
Liam Girdwood <lgirdwood@gmail.com>,
Mark Brown <broonie@kernel.org>, Jaroslav Kysela <perex@perex.cz>,
Takashi Iwai <tiwai@suse.com>,
alsa-devel@alsa-project.org, linux-kernel@vger.kernel.org,
linux-samsung-soc@vger.kernel.org,
Marek Szyprowski <m.szyprowski@samsung.com>
Subject: Re: [PATCH] ASoC: dapm: Check for NULL widget in dapm_update_dai_unlocked
Date: Wed, 06 Feb 2019 11:18:01 +0100 [thread overview]
Message-ID: <a1f95900-caa6-0dbd-3c8e-88a2d802163d@samsung.com> (raw)
In-Reply-To: <20190206100549.GO3837@imbe.wolfsonmicro.main>
On 2/6/19 11:05, Charles Keepax wrote:
> DAIs linked to the dummy will not have an associated playback/capture
> widget, so we need to skip the update in that case.
>
> Fixes: 078a85f2806f ("ASoC: dapm: Only power up active channels from a DAI")
> Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Tested-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
> ---
>
> Ok so that all makes sense, this patch is probably the best fix?
It seems so, everything works well with such change, thank you.
> sound/soc/soc-dapm.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/sound/soc/soc-dapm.c b/sound/soc/soc-dapm.c
> index 482ddb825fb59..5235d8828758a 100644
> --- a/sound/soc/soc-dapm.c
> +++ b/sound/soc/soc-dapm.c
> @@ -2570,6 +2570,9 @@ static int dapm_update_dai_unlocked(struct snd_pcm_substream *substream,
> else
> w = dai->capture_widget;
>
> + if (!w)
> + return 0;
> +
> dev_dbg(dai->dev, "Update DAI routes for %s %s\n", dai->name,
> dir == SNDRV_PCM_STREAM_PLAYBACK ? "playback" : "capture");
>
next prev parent reply other threads:[~2019-02-06 10:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20190205211638epcas3p409823d4acac8073473153d745151ea5f@epcas3p4.samsung.com>
2019-02-05 21:16 ` [BUG BISECT] NULL pointer after commit "ASoC: dapm: Only power up active channels from a DAI" Krzysztof Kozlowski
2019-02-06 9:46 ` Sylwester Nawrocki
2019-02-06 10:05 ` [PATCH] ASoC: dapm: Check for NULL widget in dapm_update_dai_unlocked Charles Keepax
2019-02-06 10:18 ` Sylwester Nawrocki [this message]
2019-02-06 10:22 ` Krzysztof Kozlowski
2019-02-06 10:59 ` Charles Keepax
2019-02-06 11:14 ` Krzysztof Kozlowski
2019-02-06 11:45 ` Charles Keepax
2019-02-06 15:47 ` Sylwester Nawrocki
2019-02-06 10:11 ` [BUG BISECT] NULL pointer after commit "ASoC: dapm: Only power up active channels from a DAI" Sylwester Nawrocki
2019-02-06 11:03 ` Charles Keepax
2019-02-06 9:58 ` Charles Keepax
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