leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

staging: comedi: dt9812: remove 'interface' from usb private data

Browse Source 
The usb_interface * is only used in the usb (*probe) and (*disconnect).
Remove the pointer to the 'interface' in the usb private data.

For aesthetic reasons, rename the variable 'interface' to simply
'intf' in the (*probe) and (*disconnect).

Signed-off-by: H Hartley Sweeten <hsweeten@visionengravers.com>
Cc: Ian Abbott <abbotti@mev.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
H Hartley Sweeten 2013-05-14 14:28:51 -07:00 committed by Greg Kroah-Hartman
parent 135a0009a5
commit 8f5669376d
1 changed files with 17 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

36
drivers/staging/comedi/drivers/dt9812.c
View File

@ -265,7 +265,6 @@ static DEFINE_SEMAPHORE(dt9812_mutex);
struct usb_dt9812 {
struct slot_dt9812 *slot;
struct usb_device *udev;
struct usb_interface *interface;
u16 vendor;
u16 product;
u16 device;
@ -832,7 +831,7 @@ static struct comedi_driver dt9812_comedi_driver = {
.detach = dt9812_detach,
};
static int dt9812_probe(struct usb_interface *interface,
static int dt9812_probe(struct usb_interface *intf,
const struct usb_device_id *id)
{
struct slot_dt9812 *slot = NULL;
@ -870,14 +869,13 @@ static int dt9812_probe(struct usb_interface *interface,
up(&dt9812_mutex);
dev->udev = usb_get_dev(interface_to_usbdev(interface));
dev->interface = interface;
dev->udev = usb_get_dev(interface_to_usbdev(intf));
/* Check endpoints */
host = interface->cur_altsetting;
host = intf->cur_altsetting;
if (host->desc.bNumEndpoints != 5) {
dev_err(&interface->dev, "Wrong number of endpoints.\n");
dev_err(&intf->dev, "Wrong number of endpoints.\n");
retval = -ENODEV;
goto error;
}
@ -910,7 +908,7 @@ static int dt9812_probe(struct usb_interface *interface,
break;
}
if ((ep->bEndpointAddress & USB_DIR_IN) != direction) {
dev_err(&interface->dev,
dev_err(&intf->dev,
"Endpoint has wrong direction.\n");
retval = -ENODEV;
goto error;
@ -925,7 +923,7 @@ static int dt9812_probe(struct usb_interface *interface,
for (i = 0; i < 10; i++) {
retval = dt9812_read_info(dev, 1, &fw, sizeof(fw));
if (retval == 0) {
dev_info(&interface->dev,
dev_info(&intf->dev,
"usb_reset_configuration succeeded "
"after %d iterations\n", i);
break;
@ -934,22 +932,22 @@ static int dt9812_probe(struct usb_interface *interface,
}
if (dt9812_read_info(dev, 1, &dev->vendor, sizeof(dev->vendor)) != 0) {
dev_err(&interface->dev, "Failed to read vendor.\n");
dev_err(&intf->dev, "Failed to read vendor.\n");
retval = -ENODEV;
goto error;
}
if (dt9812_read_info(dev, 3, &dev->product, sizeof(dev->product)) != 0) {
dev_err(&interface->dev, "Failed to read product.\n");
dev_err(&intf->dev, "Failed to read product.\n");
retval = -ENODEV;
goto error;
}
if (dt9812_read_info(dev, 5, &dev->device, sizeof(dev->device)) != 0) {
dev_err(&interface->dev, "Failed to read device.\n");
dev_err(&intf->dev, "Failed to read device.\n");
retval = -ENODEV;
goto error;
}
if (dt9812_read_info(dev, 7, &dev->serial, sizeof(dev->serial)) != 0) {
dev_err(&interface->dev, "Failed to read serial.\n");
dev_err(&intf->dev, "Failed to read serial.\n");
retval = -ENODEV;
goto error;
}
@ -960,10 +958,10 @@ static int dt9812_probe(struct usb_interface *interface,
dev->serial = le32_to_cpu(dev->serial);
/* save our data pointer in this interface device */
usb_set_intfdata(interface, dev);
usb_set_intfdata(intf, dev);
/* let the user know what node this device is now attached to */
dev_info(&interface->dev, "USB DT9812 (%4.4x.%4.4x.%4.4x) #0x%8.8x\n",
dev_info(&intf->dev, "USB DT9812 (%4.4x.%4.4x.%4.4x) #0x%8.8x\n",
dev->vendor, dev->product, dev->device, dev->serial);
return 0;
@ -974,24 +972,24 @@ error:
return retval;
}
static void dt9812_disconnect(struct usb_interface *interface)
static void dt9812_disconnect(struct usb_interface *intf)
{
struct usb_dt9812 *dev;
int minor = interface->minor;
int minor = intf->minor;
down(&dt9812_mutex);
dev = usb_get_intfdata(interface);
dev = usb_get_intfdata(intf);
if (dev->slot) {
dev->slot->usb = NULL;
dev->slot = NULL;
}
usb_set_intfdata(interface, NULL);
usb_set_intfdata(intf, NULL);
up(&dt9812_mutex);
/* queue final destruction */
kref_put(&dev->kref, dt9812_delete);
dev_info(&interface->dev, "USB Dt9812 #%d now disconnected\n", minor);
dev_info(&intf->dev, "USB Dt9812 #%d now disconnected\n", minor);
}
static const struct usb_device_id dt9812_table[] = {