Fixed race conditions in the CDC, HID and Mass Storage class drivers when processing...

[pub/USBasp.git] / LUFA / Drivers / USB / Class / Device / HID.c

diff --git a/LUFA/Drivers/USB/Class/Device/HID.c b/LUFA/Drivers/USB/Class/Device/HID.c
index 3b0f87a..ec02138 100644 (file)
--- a/LUFA/Drivers/USB/Class/Device/HID.c
+++ b/LUFA/Drivers/USB/Class/Device/HID.c
@@ -94,6 +94,7 @@ void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* const HIDInter
                        if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
                        {
                                Endpoint_ClearSETUP();
+                               while (!(Endpoint_IsINReady()));
                                Endpoint_Write_8(HIDInterfaceInfo->State.UsingReportProtocol);
                                Endpoint_ClearIN();
                                Endpoint_ClearStatusStage();
@@ -124,6 +125,7 @@ void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* const HIDInter
                        if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
                        {
                                Endpoint_ClearSETUP();
+                               while (!(Endpoint_IsINReady()));
                                Endpoint_Write_8(HIDInterfaceInfo->State.IdleCount >> 2);
                                Endpoint_ClearIN();
                                Endpoint_ClearStatusStage();