[PATCH v2 05/32] cmd: fdt: Check argc before accessing argv in fdt bootcpu

[Simon Glass]

On case 'fdt bootcpu' is invoked without parameters, argv[2] is not
valid and this command would SEGFAULT in sandbox environment. Add
missing argc test to avoid the crash and rather print usage help
message.

Signed-off-by: Marek Vasut <marek.vasut+renesas at mailbox.org>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Cc: Heinrich Schuchardt <heinrich.schuchardt at canonical.com>
Cc: Simon Glass <sjg at chromium.org>
Cc: Tom Rini <trini at konsulko.com>
---
V2: Add RB from Simon
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 cmd/fdt.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

Applied to u-boot-dm/next, thanks!