Upgrade to 4.4.50-rt62

[kvmfornfv.git] / kernel / drivers / usb / class / cdc-acm.c

diff --git a/kernel/drivers/usb/class/cdc-acm.c b/kernel/drivers/usb/class/cdc-acm.c
index fa4e239..96849e2 100644 (file)
--- a/kernel/drivers/usb/class/cdc-acm.c
+++ b/kernel/drivers/usb/class/cdc-acm.c
@@ -877,8 +877,6 @@ static int wait_serial_change(struct acm *acm, unsigned long arg)
        DECLARE_WAITQUEUE(wait, current);
        struct async_icount old, new;
 
-       if (arg & (TIOCM_DSR | TIOCM_RI | TIOCM_CD ))
-               return -EINVAL;
        do {
                spin_lock_irq(&acm->read_lock);
                old = acm->oldcount;
@@ -1114,6 +1112,9 @@ static int acm_probe(struct usb_interface *intf,
        if (quirks == NO_UNION_NORMAL) {
                data_interface = usb_ifnum_to_if(usb_dev, 1);
                control_interface = usb_ifnum_to_if(usb_dev, 0);
+               /* we would crash */
+               if (!data_interface || !control_interface)
+                       return -ENODEV;
                goto skip_normal_probe;
        }
 
@@ -1333,7 +1334,6 @@ made_compressed_probe:
        spin_lock_init(&acm->write_lock);
        spin_lock_init(&acm->read_lock);
        mutex_init(&acm->mutex);
-       acm->rx_endpoint = usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress);
        acm->is_int_ep = usb_endpoint_xfer_int(epread);
        if (acm->is_int_ep)
                acm->bInterval = epread->bInterval;
@@ -1373,14 +1373,14 @@ made_compressed_probe:
                urb->transfer_dma = rb->dma;
                if (acm->is_int_ep) {
                        usb_fill_int_urb(urb, acm->dev,
-                                        acm->rx_endpoint,
+                                        usb_rcvintpipe(usb_dev, epread->bEndpointAddress),
                                         rb->base,
                                         acm->readsize,
                                         acm_read_bulk_callback, rb,
                                         acm->bInterval);
                } else {
                        usb_fill_bulk_urb(urb, acm->dev,
-                                         acm->rx_endpoint,
+                                         usb_rcvbulkpipe(usb_dev, epread->bEndpointAddress),
                                          rb->base,
                                          acm->readsize,
                                          acm_read_bulk_callback, rb);
@@ -1708,6 +1708,7 @@ static const struct usb_device_id acm_ids[] = {
        { USB_DEVICE(0x20df, 0x0001), /* Simtec Electronics Entropy Key */
        .driver_info = QUIRK_CONTROL_LINE_STATE, },
        { USB_DEVICE(0x2184, 0x001c) }, /* GW Instek AFG-2225 */
+       { USB_DEVICE(0x2184, 0x0036) }, /* GW Instek AFG-125 */
        { USB_DEVICE(0x22b8, 0x6425), /* Motorola MOTOMAGX phones */
        },
        /* Motorola H24 HSPA module: */