diff options
Diffstat (limited to 'drivers/usb/misc/chaoskey.c')
| -rw-r--r-- | drivers/usb/misc/chaoskey.c | 29 |
1 files changed, 24 insertions, 5 deletions
diff --git a/drivers/usb/misc/chaoskey.c b/drivers/usb/misc/chaoskey.c index abec6e604a62..3a701c1e9e75 100644 --- a/drivers/usb/misc/chaoskey.c +++ b/drivers/usb/misc/chaoskey.c @@ -106,6 +106,7 @@ static void chaoskey_free(struct chaoskey *dev) usb_free_urb(dev->urb); kfree(dev->name); kfree(dev->buf); + usb_put_intf(dev->interface); kfree(dev); } } @@ -153,6 +154,8 @@ static int chaoskey_probe(struct usb_interface *interface, if (dev == NULL) goto out; + dev->interface = usb_get_intf(interface); + dev->buf = kmalloc(size, GFP_KERNEL); if (dev->buf == NULL) @@ -186,8 +189,6 @@ static int chaoskey_probe(struct usb_interface *interface, strcat(dev->name, udev->serial); } - dev->interface = interface; - dev->in_ep = in_ep; if (le16_to_cpu(udev->descriptor.idVendor) != ALEA_VENDOR_ID) @@ -395,13 +396,17 @@ static int _chaoskey_fill(struct chaoskey *dev) !dev->reading, (started ? NAK_TIMEOUT : ALEA_FIRST_TIMEOUT) ); - if (result < 0) + if (result < 0) { + usb_kill_urb(dev->urb); goto out; + } - if (result == 0) + if (result == 0) { result = -ETIMEDOUT; - else + usb_kill_urb(dev->urb); + } else { result = dev->valid; + } out: /* Let the device go back to sleep eventually */ usb_autopm_put_interface(dev->interface); @@ -537,7 +542,21 @@ static int chaoskey_suspend(struct usb_interface *interface, static int chaoskey_resume(struct usb_interface *interface) { + struct chaoskey *dev; + struct usb_device *udev = interface_to_usbdev(interface); + usb_dbg(interface, "resume"); + dev = usb_get_intfdata(interface); + + /* + * We may have lost power. + * In that case the device that needs a long time + * for the first requests needs an extended timeout + * again + */ + if (le16_to_cpu(udev->descriptor.idVendor) == ALEA_VENDOR_ID) + dev->reads_started = false; + return 0; } #else |