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-rw-r--r--nandwrite.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/nandwrite.c b/nandwrite.c
index 5373a89..2e45136 100644
--- a/nandwrite.c
+++ b/nandwrite.c
@@ -218,6 +218,10 @@ static void process_options(int argc, char * const argv[])
exit(EXIT_FAILURE);
}
+ if (blockalign < 0)
+ errmsg_die("Can't specify negative blockalign with option -b:"
+ " %d", blockalign);
+
argc -= optind;
argv += optind;