linux-kernel - [PATCH] ASoC: Use memset

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Date:   Fri, 18 Sep 2020 18:00:19 +0800
From:   Shane Chien <shane.chien@...iatek.com>
To:     Matthias Brugger <matthias.bgg@...il.com>,
        Mark Brown <broonie@...nel.org>
CC:     <linux-kernel@...r.kernel.org>,
        <linux-mediatek@...ts.infradead.org>, <devicetree@...r.kernel.org>,
        <wsd_upstream@...iatek.com>, <jiaxin.yu@...iatek.com>,
        <eason.yen@...iatek.com>, <shane.chien@...iatek.com>
Subject: [PATCH] ASoC: Use memset_io to access I/O memory

From: "Shane.Chien" <shane.chien@...iatek.com>

Use memset_io to access I/O memory, instead of
memset.

Signed-off-by: Shane.Chien <shane.chien@...iatek.com>
---
 sound/core/pcm_native.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/core/pcm_native.c b/sound/core/pcm_native.c
index 9e0b2d7..a4efa84 100644
--- a/sound/core/pcm_native.c
+++ b/sound/core/pcm_native.c
@@ -756,7 +756,7 @@ static int snd_pcm_hw_params(struct snd_pcm_substream *substream,
 
 	/* clear the buffer for avoiding possible kernel info leaks */
 	if (runtime->dma_area && !substream->ops->copy_user)
-		memset(runtime->dma_area, 0, runtime->dma_bytes);
+		memset_io(runtime->dma_area, 0, runtime->dma_bytes);
 
 	snd_pcm_timer_resolution_change(substream);
 	snd_pcm_set_state(substream, SNDRV_PCM_STATE_SETUP);
-- 
1.7.9.5