uwb: fix error handling

Fatal errors such as a device disconnect must not trigger
error handling. The error returns must be checked.

Signed-off-by: Oliver Neukum <oneukum@suse.de>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/uwb/hwa-rc.c b/drivers/uwb/hwa-rc.c
index 66797e9..810c90a 100644 (file)
--- a/drivers/uwb/hwa-rc.c
+++ b/drivers/uwb/hwa-rc.c
@@ -645,7 +645,8 @@ void hwarc_neep_cb(struct urb *urb)
                dev_err(dev, "NEEP: URB error %d\n", urb->status);
        }
        result = usb_submit_urb(urb, GFP_ATOMIC);
                dev_err(dev, "NEEP: URB error %d\n", urb->status);
        }
        result = usb_submit_urb(urb, GFP_ATOMIC);

-       if (result < 0) {
+       if (result < 0 && result != -ENODEV && result != -EPERM) {
+               /* ignoring unrecoverable errors */

                dev_err(dev, "NEEP: Can't resubmit URB (%d) resetting device\n",
                        result);
                goto error;
                dev_err(dev, "NEEP: Can't resubmit URB (%d) resetting device\n",
                        result);
                goto error;