tools: kwbimage: Add missing check for maximal value for DATA_DELAY
Data delay is stored as 8-bit number in kwbimage structure. Ensure the
given value is at most 255.
Signed-off-by: Pali Rohár <pali@kernel.org>
Reviewed-by: Marek Behún <marek.behun@nic.cz>
Reviewed-by: Stefan Roese <sr@denx.de>
diff --git a/tools/kwbimage.c b/tools/kwbimage.c
index 7c21060..2de8c37 100644
--- a/tools/kwbimage.c
+++ b/tools/kwbimage.c
@@ -1659,6 +1659,10 @@
el->regdata_delay = REGISTER_SET_HDR_OPT_DELAY_SDRAM_SETUP;
else
el->regdata_delay = REGISTER_SET_HDR_OPT_DELAY_MS(strtoul(value1, NULL, 10));
+ if (el->regdata_delay > 255) {
+ fprintf(stderr, "Maximal DATA_DELAY is 255\n");
+ return -1;
+ }
break;
case IMAGE_CFG_BAUDRATE:
el->baudrate = strtoul(value1, NULL, 10);