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path: root/drivers/usb/gadget/net2280.c
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Diffstat (limited to 'drivers/usb/gadget/net2280.c')
-rw-r--r--drivers/usb/gadget/net2280.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/usb/gadget/net2280.c b/drivers/usb/gadget/net2280.c
index 3acc896a5d4c..3024c679e38e 100644
--- a/drivers/usb/gadget/net2280.c
+++ b/drivers/usb/gadget/net2280.c
@@ -1040,6 +1040,7 @@ net2280_queue (struct usb_ep *_ep, struct usb_request *_req, gfp_t gfp_flags)
1040 1040
1041 } /* else the irq handler advances the queue. */ 1041 } /* else the irq handler advances the queue. */
1042 1042
1043 ep->responded = 1;
1043 if (req) 1044 if (req)
1044 list_add_tail (&req->queue, &ep->queue); 1045 list_add_tail (&req->queue, &ep->queue);
1045done: 1046done:
@@ -2188,7 +2189,8 @@ static void handle_ep_small (struct net2280_ep *ep)
2188 ep->stopped = 1; 2189 ep->stopped = 1;
2189 set_halt (ep); 2190 set_halt (ep);
2190 mode = 2; 2191 mode = 2;
2191 } else if (!req && !ep->stopped) 2192 } else if (ep->responded &&
2193 !req && !ep->stopped)
2192 write_fifo (ep, NULL); 2194 write_fifo (ep, NULL);
2193 } 2195 }
2194 } else { 2196 } else {
@@ -2203,7 +2205,7 @@ static void handle_ep_small (struct net2280_ep *ep)
2203 } else if (((t & (1 << DATA_OUT_PING_TOKEN_INTERRUPT)) 2205 } else if (((t & (1 << DATA_OUT_PING_TOKEN_INTERRUPT))
2204 && req 2206 && req
2205 && req->req.actual == req->req.length) 2207 && req->req.actual == req->req.length)
2206 || !req) { 2208 || (ep->responded && !req)) {
2207 ep->dev->protocol_stall = 1; 2209 ep->dev->protocol_stall = 1;
2208 set_halt (ep); 2210 set_halt (ep);
2209 ep->stopped = 1; 2211 ep->stopped = 1;
@@ -2469,6 +2471,7 @@ static void handle_stat0_irqs (struct net2280 *dev, u32 stat)
2469 /* we made the hardware handle most lowlevel requests; 2471 /* we made the hardware handle most lowlevel requests;
2470 * everything else goes uplevel to the gadget code. 2472 * everything else goes uplevel to the gadget code.
2471 */ 2473 */
2474 ep->responded = 1;
2472 switch (u.r.bRequest) { 2475 switch (u.r.bRequest) {
2473 case USB_REQ_GET_STATUS: { 2476 case USB_REQ_GET_STATUS: {
2474 struct net2280_ep *e; 2477 struct net2280_ep *e;
@@ -2537,6 +2540,7 @@ delegate:
2537 u.r.bRequestType, u.r.bRequest, 2540 u.r.bRequestType, u.r.bRequest,
2538 w_value, w_index, w_length, 2541 w_value, w_index, w_length,
2539 readl (&ep->regs->ep_cfg)); 2542 readl (&ep->regs->ep_cfg));
2543 ep->responded = 0;
2540 spin_unlock (&dev->lock); 2544 spin_unlock (&dev->lock);
2541 tmp = dev->driver->setup (&dev->gadget, &u.r); 2545 tmp = dev->driver->setup (&dev->gadget, &u.r);
2542 spin_lock (&dev->lock); 2546 spin_lock (&dev->lock);
@@ -2857,7 +2861,7 @@ static int net2280_probe (struct pci_dev *pdev, const struct pci_device_id *id)
2857 } 2861 }
2858 2862
2859 /* alloc, and start init */ 2863 /* alloc, and start init */
2860 dev = kzalloc (sizeof *dev, SLAB_KERNEL); 2864 dev = kzalloc (sizeof *dev, GFP_KERNEL);
2861 if (dev == NULL){ 2865 if (dev == NULL){
2862 retval = -ENOMEM; 2866 retval = -ENOMEM;
2863 goto done; 2867 goto done;