USB: fix memory leak in cdc-acm

[deliverable/linux.git] / drivers / usb / class / cdc-acm.c

diff --git a/drivers/usb/class/cdc-acm.c b/drivers/usb/class/cdc-acm.c
index fab23ee8702b0a813ef4da6ba9a63dc3c7271d28..20104443081ad1fc260d4ba74f17a0c9828eca69 100644 (file)
--- a/drivers/usb/class/cdc-acm.c
+++ b/drivers/usb/class/cdc-acm.c
@@ -849,9 +849,10 @@ static void acm_write_buffers_free(struct acm *acm)
 {
        int i;
        struct acm_wb *wb;
+       struct usb_device *usb_dev = interface_to_usbdev(acm->control);
 
        for (wb = &acm->wb[0], i = 0; i < ACM_NW; i++, wb++) {
-               usb_buffer_free(acm->dev, acm->writesize, wb->buf, wb->dmah);
+               usb_buffer_free(usb_dev, acm->writesize, wb->buf, wb->dmah);
        }
 }