get rid of overflow warning

diff --git a/betty/fwflash.c b/betty/fwflash.c
index 85a64fa8e95458097e129742d509fcfeca1d8e3c..26a68a8198065f095ed306618faf003de87814e9 100644 (file)
--- a/betty/fwflash.c
+++ b/betty/fwflash.c
@@ -467,7 +467,8 @@ int main(void) {
                                uart0_send_buf16((u16 *)addr,datalen);
                        if((addr>=BANK2)&(addr+datalen<=BANK2+BANK_SIZE))
                                uart0_send_buf16((u16 *)addr,datalen);
-                       if((addr>=BOOTLOADER)&(addr+datalen<=BOOTLOADER+BL_SIZE))
+                       if((addr>=BOOTLOADER)&
+                          (addr+datalen<BOOTLOADER-1+BL_SIZE))
                                uart0_send_buf32((u32 *)addr,datalen);
                        break;
                case CMD_WRITE: