From 0ece6b50f153fe2d349f4d26b18de4b0a3273537 Mon Sep 17 00:00:00 2001
From: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Date: Thu, 7 May 2015 21:29:18 +0300
Subject: [PATCH] pxe: Fix crash if 'sysboot' is run without args
Previously, a NULL pointer dereference would occur if the 'sysboot'
command is executed without any arguments.
Signed-off-by: Tuomas Tynkkynen <tuomas.tynkkynen@iki.fi>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
common/cmd_pxe.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/common/cmd_pxe.c b/common/cmd_pxe.c
index 4cbb2b11734..abf0941b579 100644
--- a/common/cmd_pxe.c
+++ b/common/cmd_pxe.c
@@ -1648,7 +1648,7 @@ static int do_sysboot(cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
is_pxe = false;
- if (strstr(argv[1], "-p")) {
+ if (argc > 1 && strstr(argv[1], "-p")) {
prompt = 1;
argc--;
argv++;
--
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