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Diffstat (limited to 'sound/core/hwdep_compat.c')
-rw-r--r--sound/core/hwdep_compat.c23
1 files changed, 7 insertions, 16 deletions
diff --git a/sound/core/hwdep_compat.c b/sound/core/hwdep_compat.c
index bc81db9cb3d4..a0b76706c083 100644
--- a/sound/core/hwdep_compat.c
+++ b/sound/core/hwdep_compat.c
@@ -19,26 +19,17 @@ struct snd_hwdep_dsp_image32 {
static int snd_hwdep_dsp_load_compat(struct snd_hwdep *hw,
struct snd_hwdep_dsp_image32 __user *src)
{
- struct snd_hwdep_dsp_image __user *dst;
+ struct snd_hwdep_dsp_image info = {};
compat_caddr_t ptr;
- u32 val;
- dst = compat_alloc_user_space(sizeof(*dst));
-
- /* index and name */
- if (copy_in_user(dst, src, 4 + 64))
- return -EFAULT;
- if (get_user(ptr, &src->image) ||
- put_user(compat_ptr(ptr), &dst->image))
- return -EFAULT;
- if (get_user(val, &src->length) ||
- put_user(val, &dst->length))
- return -EFAULT;
- if (get_user(val, &src->driver_data) ||
- put_user(val, &dst->driver_data))
+ if (copy_from_user(&info, src, 4 + 64) ||
+ get_user(ptr, &src->image) ||
+ get_user(info.length, &src->length) ||
+ get_user(info.driver_data, &src->driver_data))
return -EFAULT;
+ info.image = compat_ptr(ptr);
- return snd_hwdep_dsp_load(hw, dst);
+ return snd_hwdep_dsp_load(hw, &info);
}
enum {