Use the new endpoint helpers to lookup the required interrupt-in and
interrupt-out endpoints.
Note that the descriptors are searched in reverse order to avoid any
regressions.
Signed-off-by: Johan Hovold <johan@xxxxxxxxxx>
---
drivers/usb/misc/adutux.c | 31 ++++++++-----------------------
1 file changed, 8 insertions(+), 23 deletions(-)
diff --git a/drivers/usb/misc/adutux.c b/drivers/usb/misc/adutux.c
index 23fce40beab2..dfd54ea4808f 100644
--- a/drivers/usb/misc/adutux.c
+++ b/drivers/usb/misc/adutux.c
@@ -655,12 +655,10 @@ static int adu_probe(struct usb_interface *interface,
{
struct usb_device *udev = interface_to_usbdev(interface);
struct adu_device *dev = NULL;
- struct usb_host_interface *iface_desc;
- struct usb_endpoint_descriptor *endpoint;
int retval = -ENOMEM;
int in_end_size;
int out_end_size;
- int i;
+ int res;
/* allocate memory for our device state and initialize it */
dev = kzalloc(sizeof(struct adu_device), GFP_KERNEL);
@@ -673,26 +671,13 @@ static int adu_probe(struct usb_interface *interface,
init_waitqueue_head(&dev->read_wait);
init_waitqueue_head(&dev->write_wait);
- iface_desc = &interface->altsetting[0];
-
- /* set up the endpoint information */
- for (i = 0; i < iface_desc->desc.bNumEndpoints; ++i) {
- endpoint = &iface_desc->endpoint[i].desc;
-
- if (usb_endpoint_is_int_in(endpoint))
- dev->interrupt_in_endpoint = endpoint;
-
- if (usb_endpoint_is_int_out(endpoint))
- dev->interrupt_out_endpoint = endpoint;
- }
- if (dev->interrupt_in_endpoint == NULL) {
- dev_err(&interface->dev, "interrupt in endpoint not found\n");
- retval = -ENODEV;
- goto error;
- }
- if (dev->interrupt_out_endpoint == NULL) {
- dev_err(&interface->dev, "interrupt out endpoint not found\n");
- retval = -ENODEV;
+ res = usb_find_common_endpoints_reverse(&interface->altsetting[0],
+ NULL, NULL,
+ &dev->interrupt_in_endpoint,
+ &dev->interrupt_out_endpoint);
+ if (res) {
+ dev_err(&interface->dev, "interrupt endpoints not found\n");
+ retval = res;
goto error;
}
--
2.12.0
--
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