lists.openwall.net   lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  linux-cve-announce  PHC 
Open Source and information security mailing list archives
 
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <20190206100549.GO3837@imbe.wolfsonmicro.main>
Date:   Wed, 6 Feb 2019 10:05:49 +0000
From:   Charles Keepax <ckeepax@...nsource.cirrus.com>
To:     Sylwester Nawrocki <s.nawrocki@...sung.com>
CC:     Krzysztof Kozlowski <krzk@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Jaroslav Kysela <perex@...ex.cz>,
        Takashi Iwai <tiwai@...e.com>, <alsa-devel@...a-project.org>,
        <linux-kernel@...r.kernel.org>,
        <linux-samsung-soc@...r.kernel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: [PATCH] ASoC: dapm: Check for NULL widget in dapm_update_dai_unlocked

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@...nsource.cirrus.com>
---

Ok so that all makes sense, this patch is probably the best fix?

Thanks,
Charles

 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");
 
-- 
2.11.0

Powered by blists - more mailing lists

Powered by Openwall GNU/*/Linux Powered by OpenVZ