X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/071e02c6b6b4837fa9cf0b6d4c749994e02638d7..cd39c38d5f39d89da989859afd72576b4c1532aa:/Demos/Device/Incomplete/Sideshow/Sideshow.c?ds=sidebyside

diff --git a/Demos/Device/Incomplete/Sideshow/Sideshow.c b/Demos/Device/Incomplete/Sideshow/Sideshow.c
index 3e9778e29..e99a26b36 100644
--- a/Demos/Device/Incomplete/Sideshow/Sideshow.c
+++ b/Demos/Device/Incomplete/Sideshow/Sideshow.c
@@ -115,25 +115,22 @@ void EVENT_USB_Device_ConfigurationChanged(void)
 
 void EVENT_USB_Device_UnhandledControlRequest(void)
 {
-	/* Process UFI specific control requests */
 	switch (USB_ControlRequest.bRequest)
 	{
 		case REQ_GetOSFeatureDescriptor:
 			if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE))
 			{
 				void*    DescriptorPointer;
-				uint16_t DescriptorSize;
+				uint16_t DescriptorSize = USB_GetOSFeatureDescriptor(USB_ControlRequest.wValue, USB_ControlRequest.wIndex,
+				                                                     &DescriptorPointer, &DescriptorSize);
 
-				if (!(USB_GetOSFeatureDescriptor(USB_ControlRequest.wValue, USB_ControlRequest.wIndex,
-				                                 &DescriptorPointer, &DescriptorSize)))
-				{
-					return;
-				}
+				if (DescriptorSize == NO_DESCRIPTOR)
+				  return;
 				
 				Endpoint_ClearSETUP();
 				
 				Endpoint_Write_Control_PStream_LE(DescriptorPointer, DescriptorSize);
-				Endpoint_ClearOUT();				
+				Endpoint_ClearOUT();
 			}
 
 			break;