UEAGLE : be suspend friendly

this patch avoid that the kernel thread block the suspend process.
Some work is still need to recover after a resume.
Signed-off-by: NMatthieu Castet <castet.matthieu@free.fr>
Signed-off-by: NGreg Kroah-Hartman <gregkh@suse.de>

drivers/usb/atm/ueagle-atm.c

@@ -1173,6 +1173,9 @@ static int uea_kthread(void *data)
 			ret = uea_stat(sc);
 		if (ret != -EAGAIN)
 			msleep(1000);
+ 		if (try_to_freeze())
+			uea_err(INS_TO_USBDEV(sc), "suspend/resume not supported, "
+				"please unplug/replug your modem\n");
 	}
 	uea_leaves(INS_TO_USBDEV(sc));
 	return ret;