ALSA: Ensure PXA runtime data is initialised

The rest of the code relies on the runtime data being zero initialised
so we need to use kzalloc() to allocate it.

Reported-by: Oliver Ford <ipaqlinux@oliford.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

diff --git a/sound/arm/pxa2xx-pcm-lib.c b/sound/arm/pxa2xx-pcm-lib.c
index 1c93eb77cb99fe75856055f04d74d1e3c8007e81..75a0d746fb60ff50a8eccdefab76e67c380d3e9d 100644 (file)
--- a/sound/arm/pxa2xx-pcm-lib.c
+++ b/sound/arm/pxa2xx-pcm-lib.c
@@ -194,7 +194,7 @@ int __pxa2xx_pcm_open(struct snd_pcm_substream *substream)
                goto out;
 
        ret = -ENOMEM;
-       rtd = kmalloc(sizeof(*rtd), GFP_KERNEL);
+       rtd = kzalloc(sizeof(*rtd), GFP_KERNEL);
        if (!rtd)
                goto out;
        rtd->dma_desc_array =