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-rw-r--r--tools/firmware-utils/src/buffalo-tag.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/tools/firmware-utils/src/buffalo-tag.c b/tools/firmware-utils/src/buffalo-tag.c
index e3f762583..bb763420e 100644
--- a/tools/firmware-utils/src/buffalo-tag.c
+++ b/tools/firmware-utils/src/buffalo-tag.c
@@ -97,7 +97,9 @@ static int check_params(void)
CHECKSTR(major, "major version", TAG_VERSION_LEN);
CHECKSTR(minor, "minor version", TAG_VERSION_LEN);
CHECKSTR(language, "language", TAG_LANGUAGE_LEN);
- CHECKSTR(hwver, "hardware version", 2);
+
+ if (hwver)
+ CHECKSTR(hwver, "hardware version", 2);
if (num_regions == 0) {
ERR("no region code specified");