diff options
| -rw-r--r-- | drivers/usb/gadget/dummy_hcd.c | 53 |
1 files changed, 24 insertions, 29 deletions
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c index f2b124cf320..c1af7bab26f 100644 --- a/drivers/usb/gadget/dummy_hcd.c +++ b/drivers/usb/gadget/dummy_hcd.c @@ -1026,16 +1026,10 @@ static int dummy_urb_dequeue(struct usb_hcd *hcd, struct urb *urb, int status) return rc; } -static void maybe_set_status (struct urb *urb, int status) -{ - spin_lock (&urb->lock); - urb->status = status; - spin_unlock (&urb->lock); -} - /* transfer up to a frame's worth; caller must own lock */ static int -transfer (struct dummy *dum, struct urb *urb, struct dummy_ep *ep, int limit) +transfer(struct dummy *dum, struct urb *urb, struct dummy_ep *ep, int limit, + int *status) { struct dummy_request *req; @@ -1103,15 +1097,15 @@ top: if (is_short) { if (host_len == dev_len) { req->req.status = 0; - maybe_set_status (urb, 0); + *status = 0; } else if (to_host) { req->req.status = 0; if (dev_len > host_len) - maybe_set_status (urb, -EOVERFLOW); + *status = -EOVERFLOW; else - maybe_set_status (urb, 0); + *status = 0; } else if (!to_host) { - maybe_set_status (urb, 0); + *status = 0; if (host_len > dev_len) req->req.status = -EOVERFLOW; else @@ -1125,9 +1119,8 @@ top: req->req.status = 0; if (urb->transfer_buffer_length == urb->actual_length && !(urb->transfer_flags - & URB_ZERO_PACKET)) { - maybe_set_status (urb, 0); - } + & URB_ZERO_PACKET)) + *status = 0; } /* device side completion --> continuable */ @@ -1143,7 +1136,7 @@ top: } /* host side completion --> terminate */ - if (urb->status != -EINPROGRESS) + if (*status != -EINPROGRESS) break; /* rescan to continue with any other queued i/o */ @@ -1254,6 +1247,7 @@ restart: u8 address; struct dummy_ep *ep = NULL; int type; + int status = -EINPROGRESS; urb = urbp->urb; if (urb->unlinked) @@ -1279,7 +1273,7 @@ restart: dev_dbg (dummy_dev(dum), "no ep configured for urb %p\n", urb); - maybe_set_status (urb, -EPROTO); + status = -EPROTO; goto return_urb; } @@ -1294,7 +1288,7 @@ restart: /* NOTE: must not be iso! */ dev_dbg (dummy_dev(dum), "ep %s halted, urb %p\n", ep->ep.name, urb); - maybe_set_status (urb, -EPIPE); + status = -EPIPE; goto return_urb; } /* FIXME make sure both ends agree on maxpacket */ @@ -1312,7 +1306,7 @@ restart: w_value = le16_to_cpu(setup.wValue); if (le16_to_cpu(setup.wLength) != urb->transfer_buffer_length) { - maybe_set_status (urb, -EOVERFLOW); + status = -EOVERFLOW; goto return_urb; } @@ -1342,7 +1336,7 @@ restart: if (setup.bRequestType != Dev_Request) break; dum->address = w_value; - maybe_set_status (urb, 0); + status = 0; dev_dbg (udc_dev(dum), "set_address = %d\n", w_value); value = 0; @@ -1369,7 +1363,7 @@ restart: if (value == 0) { dum->devstatus |= (1 << w_value); - maybe_set_status (urb, 0); + status = 0; } } else if (setup.bRequestType == Ep_Request) { @@ -1381,7 +1375,7 @@ restart: } ep2->halted = 1; value = 0; - maybe_set_status (urb, 0); + status = 0; } break; case USB_REQ_CLEAR_FEATURE: @@ -1391,7 +1385,7 @@ restart: dum->devstatus &= ~(1 << USB_DEVICE_REMOTE_WAKEUP); value = 0; - maybe_set_status (urb, 0); + status = 0; break; default: value = -EOPNOTSUPP; @@ -1406,7 +1400,7 @@ restart: } ep2->halted = 0; value = 0; - maybe_set_status (urb, 0); + status = 0; } break; case USB_REQ_GET_STATUS: @@ -1443,7 +1437,7 @@ restart: urb->actual_length = min (2, urb->transfer_buffer_length); value = 0; - maybe_set_status (urb, 0); + status = 0; } break; } @@ -1470,7 +1464,7 @@ restart: dev_dbg (udc_dev(dum), "setup --> %d\n", value); - maybe_set_status (urb, -EPIPE); + status = -EPIPE; urb->actual_length = 0; } @@ -1487,7 +1481,7 @@ restart: * report random errors, to debug drivers. */ limit = max (limit, periodic_bytes (dum, ep)); - maybe_set_status (urb, -ENOSYS); + status = -ENOSYS; break; case PIPE_INTERRUPT: @@ -1501,12 +1495,12 @@ restart: default: treat_control_like_bulk: ep->last_io = jiffies; - total = transfer (dum, urb, ep, limit); + total = transfer(dum, urb, ep, limit, &status); break; } /* incomplete transfer? */ - if (urb->status == -EINPROGRESS) + if (status == -EINPROGRESS) continue; return_urb: @@ -1517,6 +1511,7 @@ return_urb: usb_hcd_unlink_urb_from_ep(dummy_to_hcd(dum), urb); spin_unlock (&dum->lock); + urb->status = status; usb_hcd_giveback_urb (dummy_to_hcd(dum), urb); spin_lock (&dum->lock); |