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path: root/drivers/net/usb/rndis_host.c
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Diffstat (limited to 'drivers/net/usb/rndis_host.c')
-rw-r--r--drivers/net/usb/rndis_host.c18
1 files changed, 6 insertions, 12 deletions
diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index 28d3ee175e7b..dd8a4adf48ca 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -104,10 +104,8 @@ static void rndis_msg_indicate(struct usbnet *dev, struct rndis_indicate *msg,
104int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen) 104int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
105{ 105{
106 struct cdc_state *info = (void *) &dev->data; 106 struct cdc_state *info = (void *) &dev->data;
107 struct usb_cdc_notification notification;
108 int master_ifnum; 107 int master_ifnum;
109 int retval; 108 int retval;
110 int partial;
111 unsigned count; 109 unsigned count;
112 __le32 rsp; 110 __le32 rsp;
113 u32 xid = 0, msg_len, request_id; 111 u32 xid = 0, msg_len, request_id;
@@ -135,17 +133,13 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
135 if (unlikely(retval < 0 || xid == 0)) 133 if (unlikely(retval < 0 || xid == 0))
136 return retval; 134 return retval;
137 135
138 /* Some devices don't respond on the control channel until 136 // FIXME Seems like some devices discard responses when
139 * polled on the status channel, so do that first. */ 137 // we time out and cancel our "get response" requests...
140 retval = usb_interrupt_msg( 138 // so, this is fragile. Probably need to poll for status.
141 dev->udev,
142 usb_rcvintpipe(dev->udev, dev->status->desc.bEndpointAddress),
143 &notification, sizeof(notification), &partial,
144 RNDIS_CONTROL_TIMEOUT_MS);
145 if (unlikely(retval < 0))
146 return retval;
147 139
148 /* Poll the control channel; the request probably completed immediately */ 140 /* ignore status endpoint, just poll the control channel;
141 * the request probably completed immediately
142 */
149 rsp = buf->msg_type | RNDIS_MSG_COMPLETION; 143 rsp = buf->msg_type | RNDIS_MSG_COMPLETION;
150 for (count = 0; count < 10; count++) { 144 for (count = 0; count < 10; count++) {
151 memset(buf, 0, CONTROL_BUFFER_SIZE); 145 memset(buf, 0, CONTROL_BUFFER_SIZE);