Merge branch 'fix/usx2y' into for-linus

[safe/jmp/linux-2.6] / sound / usb / usx2y / us122l.c

diff --git a/sound/usb/usx2y/us122l.c b/sound/usb/usx2y/us122l.c
index 463f3ff..a5aae9d 100644 (file)
--- a/sound/usb/usx2y/us122l.c
+++ b/sound/usb/usx2y/us122l.c
@@ -349,14 +349,10 @@ static int usb_stream_hwdep_ioctl(struct snd_hwdep *hw, struct file *file,
        if (cmd != SNDRV_USB_STREAM_IOCTL_SET_PARAMS)
                return -ENOTTY;
 
-       cfg = kmalloc(sizeof(*cfg), GFP_KERNEL);
-       if (!cfg)
-               return -ENOMEM;
+       cfg = memdup_user((void *)arg, sizeof(*cfg));
+       if (IS_ERR(cfg))
+               return PTR_ERR(cfg);
 
-       if (copy_from_user(cfg, (void *)arg, sizeof(*cfg))) {
-               err = -EFAULT;
-               goto free;
-       }
        if (cfg->version != USB_STREAM_INTERFACE_VERSION) {
                err = -ENXIO;
                goto free;