diff options
| author | Oliver Neukum <oliver@neukum.org> | 2008-06-19 14:20:18 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2008-07-22 00:16:31 +0200 |
| commit | 87d65e54b6d5ff6ee905c4ade1e28f486ccfce8a (patch) | |
| tree | a3e3a0f31d8fe0cd03bb79262a4a91ce012c8fa2 | |
| parent | USB: delete airprime driver (diff) | |
| download | linux-87d65e54b6d5ff6ee905c4ade1e28f486ccfce8a.tar.xz linux-87d65e54b6d5ff6ee905c4ade1e28f486ccfce8a.zip | |
USB: cdc-wdm cleanup
- fixes an error with filling out control requests
- increases grepability and error logging
- fixes the short read code path
Signed-off-by: Oliver Neukum <oneukum@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/usb/class/cdc-wdm.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/usb/class/cdc-wdm.c b/drivers/usb/class/cdc-wdm.c index 731db051070a..3a656f8f9935 100644 --- a/drivers/usb/class/cdc-wdm.c +++ b/drivers/usb/class/cdc-wdm.c @@ -28,8 +28,9 @@ /* * Version Information */ -#define DRIVER_VERSION "v0.02" +#define DRIVER_VERSION "v0.03" #define DRIVER_AUTHOR "Oliver Neukum" +#define DRIVER_DESC "USB Abstract Control Model driver for USB WCM Device Management" static struct usb_device_id wdm_ids[] = { { @@ -205,7 +206,7 @@ static void wdm_int_callback(struct urb *urb) req->bRequest = USB_CDC_GET_ENCAPSULATED_RESPONSE; req->wValue = 0; req->wIndex = desc->inum; - req->wLength = cpu_to_le16(desc->bMaxPacketSize0); + req->wLength = cpu_to_le16(desc->wMaxCommand); usb_fill_control_urb( desc->response, @@ -214,7 +215,7 @@ static void wdm_int_callback(struct urb *urb) usb_rcvctrlpipe(interface_to_usbdev(desc->intf), 0), (unsigned char *)req, desc->inbuf, - desc->bMaxPacketSize0, + desc->wMaxCommand, wdm_in_callback, desc ); @@ -266,7 +267,7 @@ static void cleanup(struct wdm_device *desc) desc->sbuf, desc->validity->transfer_dma); usb_buffer_free(interface_to_usbdev(desc->intf), - desc->wMaxPacketSize, + desc->wMaxCommand, desc->inbuf, desc->response->transfer_dma); kfree(desc->orq); @@ -347,6 +348,7 @@ static ssize_t wdm_write if (rv < 0) { kfree(buf); clear_bit(WDM_IN_USE, &desc->flags); + err("Tx URB error: %d", rv); } else { dev_dbg(&desc->intf->dev, "Tx URB has been submitted index=%d", req->wIndex); @@ -418,6 +420,9 @@ retry: desc->ubuf[i] = desc->ubuf[i + cntr]; desc->length -= cntr; + /* in case we had outstanding data */ + if (!desc->length) + clear_bit(WDM_READ, &desc->flags); rv = cntr; err: @@ -735,6 +740,5 @@ module_init(wdm_init); module_exit(wdm_exit); MODULE_AUTHOR(DRIVER_AUTHOR); -MODULE_DESCRIPTION("USB Abstract Control Model driver for " - "USB WCM Device Management"); +MODULE_DESCRIPTION(DRIVER_DESC); MODULE_LICENSE("GPL"); |