[PATCH] drivers/usb/input/yealink.c: Cleanup device matching code

This should fix things mentioned below:

	"I was curious why my firewall was loading a 'phone driver'.
	It turns out that the probing in the yealink driver is
	a little too assuming..

	static struct usb_device_id usb_table [] = {
	    { USB_INTERFACE_INFO(USB_CLASS_HID, 0, 0) },
	    { }
	};

	So it picked up my UPS, and loaded the driver.
	Whilst no harm came, because it later checks the vendor/product IDs,
	this driver should probably be rewritten to only probe
	for the device IDs it actually knows about.

	Dave"

Signed-off-by: Henk Vergonet <henk.vergonet@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

1 files changed, 19 insertions, 27 deletions

diff --git a/drivers/usb/input/yealink.c b/drivers/usb/input/yealink.c
index 1bfc105ad4d6..067be34b4241 100644
--- a/drivers/usb/input/yealink.c
+++ b/drivers/usb/input/yealink.c
@@ -59,7 +59,7 @@
 #include "map_to_7segment.h"
 #include "yealink.h"
 
-#define DRIVER_VERSION "yld-20050816"
+#define DRIVER_VERSION "yld-20051230"
 #define DRIVER_AUTHOR "Henk Vergonet"
 #define DRIVER_DESC "Yealink phone driver"
 
@@ -786,16 +786,25 @@ static struct attribute_group yld_attr_group = {
  * Linux interface and usb initialisation
  ******************************************************************************/
 
-static const struct yld_device {
-        u16 idVendor;
-        u16 idProduct;
+struct driver_info {
         char *name;
-} yld_device[] = {
-        { 0x6993, 0xb001, "Yealink usb-p1k" },
 };
 
-static struct usb_device_id usb_table [] = {
-        { USB_INTERFACE_INFO(USB_CLASS_HID, 0, 0) },
+static const struct driver_info info_P1K = {
+        .name   = "Yealink usb-p1k",
+};
+
+static const struct usb_device_id usb_table [] = {
+        {
+                .match_flags            = USB_DEVICE_ID_MATCH_DEVICE |
+                                                USB_DEVICE_ID_MATCH_INT_INFO,
+                .idVendor               = 0x6993,
+                .idProduct              = 0xb001,
+                .bInterfaceClass        = USB_CLASS_HID,
+                .bInterfaceSubClass     = 0,
+                .bInterfaceProtocol     = 0,
+                .driver_info            = (kernel_ulong_t)&info_P1K
+        },
         { }
 };
 
@@ -842,33 +851,16 @@ static void usb_disconnect(struct usb_interface *intf)
         usb_cleanup(yld, 0);
 }
 
-static int usb_match(struct usb_device *udev)
-{
-        int i;
-        u16 idVendor = le16_to_cpu(udev->descriptor.idVendor);
-        u16 idProduct = le16_to_cpu(udev->descriptor.idProduct);
-
-        for (i = 0; i < ARRAY_SIZE(yld_device); i++) {
-                if ((idVendor == yld_device[i].idVendor) &&
-                    (idProduct == yld_device[i].idProduct))
-                        return i;
-        }
-        return -ENODEV;
-}
-
 static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
 {
         struct usb_device *udev = interface_to_usbdev (intf);
+        struct driver_info *nfo = (struct driver_info *)id->driver_info;
         struct usb_host_interface *interface;
         struct usb_endpoint_descriptor *endpoint;
         struct yealink_dev *yld;
         struct input_dev *input_dev;
         int ret, pipe, i;
 
-        i = usb_match(udev);
-        if (i < 0)
-                return -ENODEV;
-
         interface = intf->cur_altsetting;
         endpoint = &interface->endpoint[0].desc;
         if (!(endpoint->bEndpointAddress & USB_DIR_IN))
@@ -948,7 +940,7 @@ static int usb_probe(struct usb_interface *intf, const struct usb_device_id *id)
         strlcat(yld->phys,  "/input0", sizeof(yld->phys));
 
         /* register settings for the input device */
-        input_dev->name = yld_device[i].name;
+        input_dev->name = nfo->name;
         input_dev->phys = yld->phys;
         usb_to_input_id(udev, &input_dev->id);
         input_dev->cdev.dev = &intf->dev;