ALSA: Fix a Oops bug in omap soc driver.

commit 19b3f31609dc8be3a56c78dcb7da723f10f7009c upstream.

There will be a Oops or frequent underrun messages when playing music with
omap soc driver, this is because a data region is incorretly sized, other data
region will be overwriten when writing to this data region.

Signed-off-by: Stanley Miao <stanley.miao@windriver.com>
Acked-by: Jarkko Nikula <jarkko.nikula@nokia.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/sound/soc/omap/omap-pcm.c b/sound/soc/omap/omap-pcm.c
index 690bfea..5e023ba 100644 (file)
--- a/sound/soc/omap/omap-pcm.c
+++ b/sound/soc/omap/omap-pcm.c
@@ -231,7 +231,7 @@ static int omap_pcm_open(struct snd_pcm_substream *substream)
        if (ret < 0)
                goto out;
 
-       prtd = kzalloc(sizeof(prtd), GFP_KERNEL);
+       prtd = kzalloc(sizeof(*prtd), GFP_KERNEL);
        if (prtd == NULL) {
                ret = -ENOMEM;
                goto out;