Fix unused variables error in amt_jtagaccel

[openocd.git] / src / jtag / drivers / amt_jtagaccel.c

diff --git a/src/jtag/drivers/amt_jtagaccel.c b/src/jtag/drivers/amt_jtagaccel.c
index a433e81eb6661c30a97888d11d9d325cf53e2a22..34a4ae784d3a34d0aca47956eede1328d9db71f0 100644 (file)
--- a/src/jtag/drivers/amt_jtagaccel.c
+++ b/src/jtag/drivers/amt_jtagaccel.c
@@ -71,14 +71,18 @@ static const int addr_mode = IEEE1284_MODE_EPP | IEEE1284_ADDR;
                int __retval; \
                \
                __retval = ioctl(device_handle, PPSETMODE, &addr_mode); \
+               assert(__retval >= 0); \
                __retval = write(device_handle, &val, 1); \
+               assert(__retval >= 0); \
        } while (0)
 #define AMT_AR(val) \
        do { \
                int __retval; \
                \
                __retval = ioctl(device_handle, PPSETMODE, &addr_mode); \
+               assert(__retval >= 0); \
                __retval = read(device_handle, &val, 1); \
+               assert(__retval >= 0); \
        } while (0)
 
 static const int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA;
@@ -88,14 +92,18 @@ static const int data_mode = IEEE1284_MODE_EPP | IEEE1284_DATA;
                int __retval; \
                \
                __retval = ioctl(device_handle, PPSETMODE, &data_mode); \
+               assert(__retval >= 0); \
                __retval = write(device_handle, &val, 1); \
+               assert(__retval >= 0); \
        } while (0)
 #define AMT_DR(val) \
        do { \
                int __retval; \
                \
                __retval = ioctl(device_handle, PPSETMODE, &data_mode); \
+               assert(__retval >= 0); \
                __retval = read(device_handle, &val, 1); \
+               assert(__retval >= 0); \
        } while (0)
 
 #else