HID: fix start/stop cycle in usbhid driver

[linux-2.6-omap-h63xx.git] / drivers / hid / usbhid / hid-core.c

diff --git a/drivers/hid/usbhid/hid-core.c b/drivers/hid/usbhid/hid-core.c
index 18e5ddd722cd5887d71c38d2cbfbf46e20553f1a..f0339aefc7982139a9359a7d04d64bdb66d1b160 100644 (file)
--- a/drivers/hid/usbhid/hid-core.c
+++ b/drivers/hid/usbhid/hid-core.c
@@ -781,6 +781,8 @@ static int usbhid_start(struct hid_device *hid)
        unsigned int n, insize = 0;
        int ret;
 
+       clear_bit(HID_DISCONNECTED, &usbhid->iofl);
+
        usbhid->bufsize = HID_MIN_BUFFER_SIZE;
        hid_find_max_report(hid, HID_INPUT_REPORT, &usbhid->bufsize);
        hid_find_max_report(hid, HID_OUTPUT_REPORT, &usbhid->bufsize);
@@ -888,6 +890,9 @@ fail:
        usb_free_urb(usbhid->urbin);
        usb_free_urb(usbhid->urbout);
        usb_free_urb(usbhid->urbctrl);
+       usbhid->urbin = NULL;
+       usbhid->urbout = NULL;
+       usbhid->urbctrl = NULL;
        hid_free_buffers(dev, hid);
        mutex_unlock(&usbhid->setup);
        return ret;
@@ -924,6 +929,9 @@ static void usbhid_stop(struct hid_device *hid)
        usb_free_urb(usbhid->urbin);
        usb_free_urb(usbhid->urbctrl);
        usb_free_urb(usbhid->urbout);
+       usbhid->urbin = NULL; /* don't mess up next start */
+       usbhid->urbctrl = NULL;
+       usbhid->urbout = NULL;
 
        hid_free_buffers(hid_to_usb_dev(hid), hid);
        mutex_unlock(&usbhid->setup);