From mboxrd@z Thu Jan 1 00:00:00 1970 From: Peter Ujfalusi Subject: [PATCH v2 02/23] ASoC: tas2552: Fix kernel crash when the codec is loaded but not part of a card Date: Thu, 4 Jun 2015 16:04:14 +0300 Message-ID: <1433423075-14142-3-git-send-email-peter.ujfalusi@ti.com> References: <1433423075-14142-1-git-send-email-peter.ujfalusi@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from arroyo.ext.ti.com (arroyo.ext.ti.com [192.94.94.40]) by alsa0.perex.cz (Postfix) with ESMTP id 411D526069C for ; Thu, 4 Jun 2015 15:04:45 +0200 (CEST) In-Reply-To: <1433423075-14142-1-git-send-email-peter.ujfalusi@ti.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: alsa-devel-bounces@alsa-project.org Sender: alsa-devel-bounces@alsa-project.org To: Mark Brown , Liam Girdwood , dmurphy@ti.com Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org If the card is not part of any card the tas_data->codec is NULL since it is set only during snd_soc_codec_driver.probe, which is not yet called. Signed-off-by: Peter Ujfalusi --- sound/soc/codecs/tas2552.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/sound/soc/codecs/tas2552.c b/sound/soc/codecs/tas2552.c index ff82f46ba504..df89947f1032 100644 --- a/sound/soc/codecs/tas2552.c +++ b/sound/soc/codecs/tas2552.c @@ -120,6 +120,9 @@ static void tas2552_sw_shutdown(struct tas2552_data *tas_data, int sw_shutdown) { u8 cfg1_reg; + if (!tas_data->codec) + return; + if (sw_shutdown) cfg1_reg = 0; else -- 2.4.2