From 0d6504cadbe0ac4c898789cfc1ea1e303dbb5db0 Mon Sep 17 00:00:00 2001
From: Brian Norris <computersforpeace@gmail.com>
Date: Tue, 30 Nov 2010 22:19:44 -0800
Subject: nandwrite: add check for negative blockalign

Includes error messages for negative blockalign, telling the user what
the offending option and value were.

Signed-off-by: Brian Norris <computersforpeace@gmail.com>
Signed-off-by: Artem Bityutskiy <Artem.Bityutskiy@nokia.com>
---
 nandwrite.c | 4 ++++
 1 file changed, 4 insertions(+)

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;
 
-- 
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