Fixed possible buffer overrun in the XPLAINBridge project when in serial bridge mode.

[pub/lufa.git] / Projects / USBtoSerial / USBtoSerial.c

diff --git a/Projects/USBtoSerial/USBtoSerial.c b/Projects/USBtoSerial/USBtoSerial.c
index 145047c..1cd6f55 100644 (file)
--- a/Projects/USBtoSerial/USBtoSerial.c
+++ b/Projects/USBtoSerial/USBtoSerial.c
@@ -84,7 +84,7 @@ int main(void)
                /* Read bytes from the USB OUT endpoint into the USART transmit buffer */
                for (uint8_t DataBytesRem = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--)
                {
                /* Read bytes from the USB OUT endpoint into the USART transmit buffer */
                for (uint8_t DataBytesRem = CDC_Device_BytesReceived(&VirtualSerial_CDC_Interface); DataBytesRem != 0; DataBytesRem--)
                {

-                       if (!(BUFFER_SIZE - USBtoUSART_Buffer.Count))
+                       if (RingBuffer_IsFull(&USBtoUSART_Buffer))

                          break;
                          
                        RingBuffer_AtomicInsert(&USBtoUSART_Buffer, CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface));
                          break;
                          
                        RingBuffer_AtomicInsert(&USBtoUSART_Buffer, CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface));