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-rw-r--r--src/jtag/jtag.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/src/jtag/jtag.c b/src/jtag/jtag.c
index e0b008ba..cd4b255a 100644
--- a/src/jtag/jtag.c
+++ b/src/jtag/jtag.c
@@ -1260,7 +1260,13 @@ enum scan_type jtag_scan_type(scan_command_t *cmd)
int MINIDRIVER(interface_jtag_execute_queue)(void)
{
int retval;
-
+
+ if (jtag==NULL)
+ {
+ LOG_ERROR("No JTAG interface configured yet. Issue 'init' command in startup scripts before communicating with targets.");
+ return ERROR_FAIL;
+ }
+
retval = jtag->execute_queue();
cmd_queue_free();