From 9dd73448c6a98b1971e626627e4b020b8898a3f6 Mon Sep 17 00:00:00 2001 From: Jean-Baptiste Theou Date: Fri, 8 Jan 2016 20:02:03 -0200 Subject: [PATCH] [media] cx231xx: Fix memory leak dma_area needs to be freed when the device is closed. Based on em23xx-audio.c Signed-off-by: Jean-Baptiste Theou Signed-off-by: Hans Verkuil Signed-off-by: Mauro Carvalho Chehab --- drivers/media/usb/cx231xx/cx231xx-audio.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/media/usb/cx231xx/cx231xx-audio.c b/drivers/media/usb/cx231xx/cx231xx-audio.c index de4ae5eb4830..a6a9508418f8 100644 --- a/drivers/media/usb/cx231xx/cx231xx-audio.c +++ b/drivers/media/usb/cx231xx/cx231xx-audio.c @@ -499,6 +499,11 @@ static int snd_cx231xx_pcm_close(struct snd_pcm_substream *substream) } dev->adev.users--; + if (substream->runtime->dma_area) { + dev_dbg(dev->dev, "freeing\n"); + vfree(substream->runtime->dma_area); + substream->runtime->dma_area = NULL; + } mutex_unlock(&dev->lock); if (dev->adev.users == 0 && dev->adev.shutdown == 1) { -- 2.20.1