[U-Boot] [PATCH] MX28: Fix MXSBOOT segfault if no params specified

[Marek Vasut]

Signed-off-by: Marek Vasut <marek.vasut at gmail.com>
Cc: Wolfgang Denk <wd at denx.de>
Cc: Stefano Babic <sbabic at denx.de>
---
 tools/mxsboot.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/tools/mxsboot.c b/tools/mxsboot.c
index 176753d..8246831 100644
--- a/tools/mxsboot.c
+++ b/tools/mxsboot.c
@@ -606,6 +606,9 @@ int parse_ops(int argc, char **argv)
 	};
 	int type;
 
+	if (argc < 4)
+		return -1;
+
 	for (i = 1; i < argc; i++) {
 		if (!strncmp(argv[i], "-w", 2))
 			type = PARAM_WRITE;
-- 
1.7.7.3