X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=src%2Fjtag%2Ftcl.c;h=1073abc024887bc4ffb9420058efa4cd8070adf0;hp=da01f8125c719dab8fbdd37d08b3ecdf223a6558;hb=57d7743639d5092770d79f7c4b12ae694c482750;hpb=e018c7c1d29e8dabb9b4a90bb9eb3574eb1668bb

diff --git a/src/jtag/tcl.c b/src/jtag/tcl.c
index da01f8125c..1073abc024 100644
--- a/src/jtag/tcl.c
+++ b/src/jtag/tcl.c
@@ -1490,6 +1490,15 @@ COMMAND_HANDLER(handle_irscan_command)
 	}
 
 	int num_fields = CMD_ARGC / 2;
+	if (num_fields > 1)
+	{
+		/* we really should be looking at plain_ir_scan if we want
+		 * anything more fancy.
+		 */
+		LOG_ERROR("Specify a single value for tap");
+		return ERROR_COMMAND_SYNTAX_ERROR;
+	}
+
 	size_t fields_len = sizeof(struct scan_field) * num_fields;
 	fields = malloc(fields_len);
 	memset(fields, 0, fields_len);
@@ -1521,7 +1530,7 @@ COMMAND_HANDLER(handle_irscan_command)
 	}
 
 	/* did we have an endstate? */
-	jtag_add_ir_scan(tap, num_fields, fields, endstate);
+	jtag_add_ir_scan(tap, fields, endstate);
 
 	retval = jtag_execute_queue();