rndis_host: pass buffer length to rndis_command

Pass buffer length to rndis_command so that rndis_command can read full
response buffer from device instead of max CONTROL_BUFFER_SIZE bytes.

Signed-off-by: Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>

1 files changed, 7 insertions, 7 deletions

diff --git a/drivers/net/usb/rndis_host.c b/drivers/net/usb/rndis_host.c
index ae467f182c40..61c98beb4d17 100644
--- a/drivers/net/usb/rndis_host.c
+++ b/drivers/net/usb/rndis_host.c
@@ -74,7 +74,7 @@ EXPORT_SYMBOL_GPL(rndis_status);
  * Call context is likely probe(), before interface name is known,
  * which is why we won't try to use it in the diagnostics.
  */
-int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
+int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf, int buflen)
 {
         struct cdc_state        *info = (void *) &dev->data;
         int                     master_ifnum;
@@ -121,7 +121,7 @@ int rndis_command(struct usbnet *dev, struct rndis_msg_hdr *buf)
                         USB_CDC_GET_ENCAPSULATED_RESPONSE,
                         USB_DIR_IN | USB_TYPE_CLASS | USB_RECIP_INTERFACE,
                         0, master_ifnum,
-                        buf, CONTROL_BUFFER_SIZE,
+                        buf, buflen,
                         RNDIS_CONTROL_TIMEOUT_MS);
                 if (likely(retval >= 8)) {
                         msg_len = le32_to_cpu(buf->msg_len);
@@ -239,7 +239,7 @@ static int rndis_query(struct usbnet *dev, struct usb_interface *intf,
         u.get->len = cpu_to_le32(in_len);
         u.get->offset = ccpu2(20);
 
-        retval = rndis_command(dev, u.header);
+        retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
         if (unlikely(retval < 0)) {
                 dev_err(&intf->dev, "RNDIS_MSG_QUERY(0x%08x) failed, %d\n",
                                 oid, retval);
@@ -328,7 +328,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
         u.init->max_transfer_size = cpu_to_le32(dev->rx_urb_size);
 
         net->change_mtu = NULL;
-        retval = rndis_command(dev, u.header);
+        retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
         if (unlikely(retval < 0)) {
                 /* it might not even be an RNDIS device!! */
                 dev_err(&intf->dev, "RNDIS init failed, %d\n", retval);
@@ -409,7 +409,7 @@ generic_rndis_bind(struct usbnet *dev, struct usb_interface *intf, int flags)
         u.set->offset = ccpu2((sizeof *u.set) - 8);
         *(__le32 *)(u.buf + sizeof *u.set) = RNDIS_DEFAULT_FILTER;
 
-        retval = rndis_command(dev, u.header);
+        retval = rndis_command(dev, u.header, CONTROL_BUFFER_SIZE);
         if (unlikely(retval < 0)) {
                 dev_err(&intf->dev, "rndis set packet filter, %d\n", retval);
                 goto halt_fail_and_release;
@@ -424,7 +424,7 @@ halt_fail_and_release:
         memset(u.halt, 0, sizeof *u.halt);
         u.halt->msg_type = RNDIS_MSG_HALT;
         u.halt->msg_len = ccpu2(sizeof *u.halt);
-        (void) rndis_command(dev, (void *)u.halt);
+        (void) rndis_command(dev, (void *)u.halt, CONTROL_BUFFER_SIZE);
 fail_and_release:
         usb_set_intfdata(info->data, NULL);
         usb_driver_release_interface(driver_of(intf), info->data);
@@ -449,7 +449,7 @@ void rndis_unbind(struct usbnet *dev, struct usb_interface *intf)
         if (halt) {
                 halt->msg_type = RNDIS_MSG_HALT;
                 halt->msg_len = ccpu2(sizeof *halt);
-                (void) rndis_command(dev, (void *)halt);
+                (void) rndis_command(dev, (void *)halt, CONTROL_BUFFER_SIZE);
                 kfree(halt);
         }