linux-kernel - [PATCH 5/5] soundwire: intel: don't free dma

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]

Date:   Tue, 23 Jun 2020 05:23:32 +0800
From:   Bard Liao <yung-chuan.liao@...ux.intel.com>
To:     alsa-devel@...a-project.org, vkoul@...nel.org
Cc:     vinod.koul@...aro.org, linux-kernel@...r.kernel.org, tiwai@...e.de,
        broonie@...nel.org, gregkh@...uxfoundation.org, jank@...ence.com,
        srinivas.kandagatla@...aro.org, rander.wang@...ux.intel.com,
        ranjani.sridharan@...ux.intel.com, hui.wang@...onical.com,
        pierre-louis.bossart@...ux.intel.com, sanyog.r.kale@...el.com,
        slawomir.blauciak@...el.com, mengdong.lin@...el.com,
        bard.liao@...el.com
Subject: [PATCH 5/5] soundwire: intel: don't free dma_data in DAI shutdown

From: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>

Now that the DMA data is allocated/freed in set_sdw_stream(), remove
free operations.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@...ux.intel.com>
Signed-off-by: Bard Liao <yung-chuan.liao@...ux.intel.com>
---
 drivers/soundwire/intel.c | 7 -------
 1 file changed, 7 deletions(-)

diff --git a/drivers/soundwire/intel.c b/drivers/soundwire/intel.c
index 72ba3d22daf9..98e98be6c0f8 100644
--- a/drivers/soundwire/intel.c
+++ b/drivers/soundwire/intel.c
@@ -985,14 +985,7 @@ intel_hw_free(struct snd_pcm_substream *substream, struct snd_soc_dai *dai)
 static void intel_shutdown(struct snd_pcm_substream *substream,
 			   struct snd_soc_dai *dai)
 {
-	struct sdw_cdns_dma_data *dma;
 
-	dma = snd_soc_dai_get_dma_data(dai, substream);
-	if (!dma)
-		return;
-
-	snd_soc_dai_set_dma_data(dai, substream, NULL);
-	kfree(dma);
 }
 
 static int intel_pcm_set_sdw_stream(struct snd_soc_dai *dai,
-- 
2.17.1