sandbox: cros_ec: fix uninitialized use of len
authorDaniel Schwierzeck <daniel.schwierzeck@gmail.com>
Fri, 6 Nov 2015 13:15:37 +0000 (14:15 +0100)
committerSimon Glass <sjg@chromium.org>
Fri, 20 Nov 2015 03:13:42 +0000 (20:13 -0700)
commit3f51a772d4b7dccc2d379762a03535408b602e54
tree317e7c894c76b23a1c55adb5c26255972d9f50d5
parentb6ff6ce60cd294af3678606eb51fdc2fe6b752bb
sandbox: cros_ec: fix uninitialized use of len

Building with gcc-5.2 raises this warning:

drivers/misc/cros_ec_sandbox.c: In function cros_ec_sandbox_packet:
drivers/misc/cros_ec_sandbox.c:483:5: warning: len may be used uninitialized in this function [-Wmaybe-uninitialized]
  if (len < 0)
     ^

If the function process_cmd() is called with
req_hdr->command == EC_CMD_ENTERING_MODE, the value of len will be
returned uninitialized.

Signed-off-by: Daniel Schwierzeck <daniel.schwierzeck@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
drivers/misc/cros_ec_sandbox.c