From cb5d9e0098a62b388fcfc7c89ddb6cda2be77a38 Mon Sep 17 00:00:00 2001
From: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Date: Sun, 14 Feb 2021 13:22:03 +0100
Subject: [PATCH] armv4_5: do not read/write non-existent registers

Change-Id: I4a0c401a325e57ba5d4d93d83b7e6b71a4d0865e
Signed-off-by: Tarek BOCHKATI <tarek.bouchkati@gmail.com>
Reviewed-on: http://openocd.zylin.com/6064
Tested-by: jenkins
Reviewed-by: Marc Schink <dev@zapb.de>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>
---
 src/target/armv4_5.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/target/armv4_5.c b/src/target/armv4_5.c
index 8ba913646..084a6f9b2 100644
--- a/src/target/armv4_5.c
+++ b/src/target/armv4_5.c
@@ -1681,7 +1681,7 @@ static int arm_full_context(struct target *target)
 	int retval = ERROR_OK;
 
 	for (; num_regs && retval == ERROR_OK; num_regs--, reg++) {
-		if (reg->valid)
+		if (!reg->exist || reg->valid)
 			continue;
 		retval = armv4_5_get_core_reg(reg);
 	}
-- 
2.30.2