diff options
| author | Ivo van Doorn <ivdoorn@gmail.com> | 2007-11-15 23:41:31 +0100 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-11-18 18:47:37 -0800 |
| commit | b242e891c218162cfbae064b1a9136cdbed5ee53 (patch) | |
| tree | 3e460f49ffd103881082bc561d0536109517b617 /drivers/net/wireless/rt2x00/rt2x00usb.c | |
| parent | 2ffbb8377c7a0713baf6644e285adc27a5654582 (diff) | |
rt2x00: Request usb_maxpacket() once
The usb max packet size won't change during the
device's presence. We should store it in a
variable inside rt2x00dev and use that.
This should also fix a division error when the
device is being hot-unplugged while a frame is
being send out.
Signed-off-by: Ivo van Doorn <IvDoorn@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/rt2x00/rt2x00usb.c')
| -rw-r--r-- | drivers/net/wireless/rt2x00/rt2x00usb.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/net/wireless/rt2x00/rt2x00usb.c b/drivers/net/wireless/rt2x00/rt2x00usb.c index 73cc726c4046..1f5675dd329f 100644 --- a/drivers/net/wireless/rt2x00/rt2x00usb.c +++ b/drivers/net/wireless/rt2x00/rt2x00usb.c @@ -159,7 +159,6 @@ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev, interface_to_usbdev(rt2x00dev_usb(rt2x00dev)); struct data_entry *entry = rt2x00_get_data_entry(ring); int pipe = usb_sndbulkpipe(usb_dev, 1); - int max_packet = usb_maxpacket(usb_dev, pipe, 1); u32 length; if (rt2x00_ring_full(ring)) { @@ -194,8 +193,7 @@ int rt2x00usb_write_tx_data(struct rt2x00_dev *rt2x00dev, * length of the data to usb_fill_bulk_urb. Pass the skb * to the driver to determine what the length should be. */ - length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, - max_packet, skb); + length = rt2x00dev->ops->lib->get_tx_data_len(rt2x00dev, skb); /* * Initialize URB and send the frame to the device. @@ -490,6 +488,11 @@ int rt2x00usb_probe(struct usb_interface *usb_intf, rt2x00dev->ops = ops; rt2x00dev->hw = hw; + rt2x00dev->usb_maxpacket = + usb_maxpacket(usb_dev, usb_sndbulkpipe(usb_dev, 1), 1); + if (!rt2x00dev->usb_maxpacket) + rt2x00dev->usb_maxpacket = 1; + retval = rt2x00usb_alloc_reg(rt2x00dev); if (retval) goto exit_free_device; |