[PATCH] JTAG: fix bug when no interface connected

[Spencer O. <nt...@us...>]

 - fix coredump when OpenOCD is started without a jtag interface connected,

Signed-off-by: Spencer Oliver <nt...@us...>
---
 src/jtag/core.c |    2 ++
 1 files changed, 2 insertions(+), 0 deletions(-)

diff --git a/src/jtag/core.c b/src/jtag/core.c
index 8a580e9..551fa95 100644
--- a/src/jtag/core.c
+++ b/src/jtag/core.c
@@ -1623,6 +1623,8 @@ bool jtag_will_verify_capture_ir()
 
 int jtag_power_dropout(int *dropout)
 {
+	if (jtag == NULL)
+		return ERROR_FAIL;
 	return jtag->power_dropout(dropout);
 }
 
-- 
1.6.5.1.1367.gcd48


--------------070502010100030600050704--