From 65c72efd1ea370f0311a5d89754996fff9fc0747 Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Mon, 10 Nov 2014 22:41:44 +0100 Subject: [PATCH] ASoC: mpc5200_dma: Don't overwrite ac97 device private_data The mpc5200_dma overwrites the private_data field of the CODEC's AC'97 device with the DMA drivers private data, but never actually reads it again. Given that the private_data field is supposed to be owned by the AC'97 driver, overwriting it may cause undefined behavior. This patch removes the code that overwrites the field from the driver. Signed-off-by: Lars-Peter Clausen Signed-off-by: Mark Brown --- sound/soc/fsl/mpc5200_dma.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/sound/soc/fsl/mpc5200_dma.c b/sound/soc/fsl/mpc5200_dma.c index f2b5d756b1f3..0b82e209b6e3 100644 --- a/sound/soc/fsl/mpc5200_dma.c +++ b/sound/soc/fsl/mpc5200_dma.c @@ -327,9 +327,6 @@ static int psc_dma_new(struct snd_soc_pcm_runtime *rtd) goto capture_alloc_err; } - if (rtd->codec->ac97) - rtd->codec->ac97->private_data = psc_dma; - return 0; capture_alloc_err: