X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=sound%2Fcore%2Fpcm_compat.c;h=9630e9f72b7ba2ad77f50a516ecc559c0c200975;hb=43c54b8c7cfe22f868a751ba8a59abf1724160b1;hp=b48b434444ed0e0239936887a891d15da0054e00;hpb=1836ac856e4fb446e48afa4f8cae897d4856b06c;p=deliverable%2Flinux.git diff --git a/sound/core/pcm_compat.c b/sound/core/pcm_compat.c index b48b434444ed..9630e9f72b7b 100644 --- a/sound/core/pcm_compat.c +++ b/sound/core/pcm_compat.c @@ -255,10 +255,15 @@ static int snd_pcm_ioctl_hw_params_compat(struct snd_pcm_substream *substream, if (! (runtime = substream->runtime)) return -ENOTTY; - /* only fifo_size is different, so just copy all */ - data = memdup_user(data32, sizeof(*data32)); - if (IS_ERR(data)) - return PTR_ERR(data); + data = kmalloc(sizeof(*data), GFP_KERNEL); + if (!data) + return -ENOMEM; + + /* only fifo_size (RO from userspace) is different, so just copy all */ + if (copy_from_user(data, data32, sizeof(*data32))) { + err = -EFAULT; + goto error; + } if (refine) err = snd_pcm_hw_refine(substream, data);