Staging: hv: hv_mouse: use a real struct hid_descriptor

The data coming from the vmbus is really a hid descriptor, so use that
structure instead of having to mess around with a character array and
pointer fun.

Cc: Hank Janssen <hjanssen@microsoft.com>
Cc: K. Y. Srinivasan <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/staging/hv/hv_mouse.c b/drivers/staging/hv/hv_mouse.c
index 2ed67d9..90badf6 100644 (file)
--- a/drivers/staging/hv/hv_mouse.c
+++ b/drivers/staging/hv/hv_mouse.c
@@ -117,7 +117,7 @@ struct synthhid_protocol_response {
 struct synthhid_device_info {
        struct synthhid_msg_hdr header;
        struct hv_input_dev_info hid_dev_info;
-       unsigned char               HidDescriptorInformation[1];
+       struct hid_descriptor hid_descriptor;
 };
 
 struct synthhid_device_info_ack {
@@ -352,7 +352,7 @@ static void MousevscOnReceiveDeviceInfo(struct mousevsc_dev *InputDevice, struct
        memcpy(&InputDevice->hid_dev_info, &DeviceInfo->hid_dev_info, sizeof(struct hv_input_dev_info));
 
        /* Save the hid desc */
-       desc = (struct hid_descriptor *)DeviceInfo->HidDescriptorInformation;
+       desc = &DeviceInfo->hid_descriptor;
        WARN_ON(desc->bLength > 0);
 
        InputDevice->HidDesc = kzalloc(desc->bLength, GFP_KERNEL);