diff options
Diffstat (limited to 'drivers/staging/ozwpan/ozhcd.c')
| -rw-r--r-- | drivers/staging/ozwpan/ozhcd.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/staging/ozwpan/ozhcd.c b/drivers/staging/ozwpan/ozhcd.c index b3d401ae41b4..91bb29e09322 100644 --- a/drivers/staging/ozwpan/ozhcd.c +++ b/drivers/staging/ozwpan/ozhcd.c @@ -294,6 +294,7 @@ static void oz_free_urb_link(struct oz_urb_link *urbl) { if (urbl) { unsigned long irq_state; + spin_lock_irqsave(&g_link_lock, irq_state); if (g_link_pool_size < OZ_MAX_LINK_POOL_SIZE) { urbl->link.next = g_link_pool; @@ -424,6 +425,7 @@ static void oz_ep_free(struct oz_port *port, struct oz_endpoint *ep) if (port) { struct list_head list; struct oz_hcd *ozhcd = port->ozhcd; + INIT_LIST_HEAD(&list); if (ep->flags & OZ_F_EP_HAVE_STREAM) oz_usb_stream_delete(port->hpd, ep->ep_num); @@ -568,6 +570,7 @@ static int oz_dequeue_ep_urb(struct oz_port *port, u8 ep_addr, int in_dir, ep = port->out_ep[ep_addr]; if (ep) { struct list_head *e; + list_for_each(e, &ep->urb_list) { urbl = container_of(e, struct oz_urb_link, link); if (urbl->urb == urb) { @@ -599,6 +602,7 @@ static struct urb *oz_find_urb_by_id(struct oz_port *port, int ep_ix, ep = port->out_ep[ep_ix]; if (ep) { struct list_head *e; + list_for_each(e, &ep->urb_list) { urbl = container_of(e, struct oz_urb_link, link); if (urbl->req_id == req_id) { @@ -815,6 +819,7 @@ void oz_hcd_get_desc_cnf(void *hport, u8 req_id, int status, const u8 *desc, if (status == 0) { int copy_len; int required_size = urb->transfer_buffer_length; + if (required_size > total_size) required_size = total_size; copy_len = required_size-offset; @@ -826,6 +831,7 @@ void oz_hcd_get_desc_cnf(void *hport, u8 req_id, int status, const u8 *desc, struct usb_ctrlrequest *setup = (struct usb_ctrlrequest *)urb->setup_packet; unsigned wvalue = le16_to_cpu(setup->wValue); + if (oz_enqueue_ep_urb(port, 0, 0, urb, req_id)) err = -ENOMEM; else if (oz_usb_get_desc_req(port->hpd, req_id, @@ -919,6 +925,7 @@ static void oz_hcd_complete_set_interface(struct oz_port *port, struct urb *urb, if ((rcode == 0) && (port->config_num > 0)) { struct usb_host_config *config; struct usb_host_interface *intf; + oz_dbg(ON, "Set interface %d alt %d\n", if_num, alt); oz_clean_endpoints_for_interface(hcd, port, if_num); config = &urb->dev->config[port->config_num-1]; @@ -974,6 +981,7 @@ void oz_hcd_control_cnf(void *hport, u8 req_id, u8 rcode, const u8 *data, } else { int copy_len; + oz_dbg(ON, "VENDOR-CLASS - cnf\n"); if (data_len) { if (data_len <= urb->transfer_buffer_length) @@ -1047,6 +1055,7 @@ void oz_hcd_data_ind(void *hport, u8 endpoint, const u8 *data, int data_len) struct oz_urb_link, link); struct urb *urb; int copy_len; + list_del_init(&urbl->link); spin_unlock_bh(&ozhcd->hcd_lock); urb = urbl->urb; @@ -1140,6 +1149,7 @@ int oz_hcd_heartbeat(void *hport) spin_lock_bh(&ozhcd->hcd_lock); list_for_each(e, &port->isoc_in_ep) { struct oz_endpoint *ep = ep_from_link(e); + if (ep->flags & OZ_F_EP_BUFFERING) { if (ep->buffered_units >= OZ_IN_BUFFERING_UNITS) { ep->flags &= ~OZ_F_EP_BUFFERING; @@ -1160,6 +1170,7 @@ int oz_hcd_heartbeat(void *hport) int len = 0; int copy_len; int i; + if (ep->credit < urb->number_of_packets) break; if (ep->buffered_units < urb->number_of_packets) @@ -1215,6 +1226,7 @@ int oz_hcd_heartbeat(void *hport) if (ep) { struct list_head *e; struct list_head *n; + spin_lock_bh(&ozhcd->hcd_lock); list_for_each_safe(e, n, &ep->urb_list) { urbl = container_of(e, struct oz_urb_link, link); @@ -1557,6 +1569,7 @@ static void oz_process_ep0_urb(struct oz_hcd *ozhcd, struct urb *urb, } if (!rc && !complete) { int data_len = 0; + if ((setup->bRequestType & USB_DIR_IN) == 0) data_len = wlength; urb->actual_length = data_len; @@ -1761,6 +1774,7 @@ static void oz_hcd_clear_orphanage(struct oz_hcd *ozhcd, int status) { if (ozhcd) { struct oz_urb_link *urbl; + while (!list_empty(&ozhcd->orphanage)) { urbl = list_first_entry(&ozhcd->orphanage, struct oz_urb_link, link); @@ -2258,6 +2272,7 @@ static int oz_plat_probe(struct platform_device *dev) spin_lock_init(&ozhcd->hcd_lock); for (i = 0; i < OZ_NB_PORTS; i++) { struct oz_port *port = &ozhcd->ports[i]; + port->ozhcd = ozhcd; port->flags = 0; port->status = 0; |