X-Git-Url: https://review.openocd.org/gitweb?a=blobdiff_plain;f=src%2Fjtag%2Fdrivers%2Famt_jtagaccel.c;h=34a4ae784d3a34d0aca47956eede1328d9db71f0;hb=57cb28b484b664c83046e064ac18f4ace4cb9181;hp=a433e81eb6661c30a97888d11d9d325cf53e2a22;hpb=e3f3f60a02abfd836c555e84b997de778177bc83;p=openocd.git

diff --git a/src/jtag/drivers/amt_jtagaccel.c b/src/jtag/drivers/amt_jtagaccel.c
index a433e81eb6..34a4ae784d 100644
--- 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