@@ -39,7 +39,7 @@ static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
u8 requesttype;
u16 value;
u16 index;
- u8 buf[req->data_len];
+ u8 *buf;
request = req->cmd;
value = req->value;
@@ -62,6 +62,12 @@ static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
goto error;
}
+ buf = kmalloc(req->data_len, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto error;
+ }
+
if (requesttype == (USB_TYPE_VENDOR | USB_DIR_OUT)) {
/* write */
memcpy(buf, req->data, req->data_len);
@@ -74,7 +80,7 @@ static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
msleep(1); /* avoid I2C errors */
ret = usb_control_msg(udev, pipe, request, requesttype, value, index,
- buf, sizeof(buf), CE6230_USB_TIMEOUT);
+ buf, req->data_len, CE6230_USB_TIMEOUT);
ce6230_debug_dump(request, requesttype, value, index, buf,
req->data_len, deb_xfer);
@@ -88,6 +94,7 @@ static int ce6230_rw_udev(struct usb_device *udev, struct req_t *req)
if (!ret && requesttype == (USB_TYPE_VENDOR | USB_DIR_IN))
memcpy(req->data, buf, req->data_len);
+ kfree(buf);
error:
return ret;
}