X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/47f6a35013b2c6a370e5dce29aa6da3a96844695..5ce60f25e68ef73e01c06409b31b75cfbac9ee3f:/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c

diff --git a/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c b/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
index a16949cfd..ff0f9bb55 100644
--- a/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
+++ b/LUFA/Drivers/USB/Class/Device/CDCClassDevice.c
@@ -69,8 +69,12 @@ void CDC_Device_ProcessControlRequest(USB_ClassInfo_CDC_Device_t* const CDCInter
 			{
 				Endpoint_ClearSETUP();
 
-				while (!(Endpoint_IsOUTReceived()));
-
+				while (!(Endpoint_IsOUTReceived()))
+				{
+					if (USB_DeviceState == DEVICE_STATE_Unattached)
+					  return;
+				}
+				
 				CDCInterfaceInfo->State.LineEncoding.BaudRateBPS = Endpoint_Read_32_LE();
 				CDCInterfaceInfo->State.LineEncoding.CharFormat  = Endpoint_Read_8();
 				CDCInterfaceInfo->State.LineEncoding.ParityType  = Endpoint_Read_8();