Rockchip: fix frame hdr overwritten error

frmHdrBufLen & frmhdr might be overwritten sometimes, which
may cause "Bad address" error when set ext ctrls.

BUG=chromium:497324
TEST=screen share through Hangouts, no more "Bad address"

Change-Id: I95d355139ca78bcb9e28a7ad018f80a71c14de34
Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Previous-Reviewed-on: https://chromium-review.googlesource.com/277732
(cherry picked from commit 6727c8e5cab46de469453fb8eee3b89fbf790c4b)
Reviewed-on: https://chromium-review.googlesource.com/280952
Reviewed-by: Justin Chuang <jchuang@chromium.org>
Tested-by: Justin Chuang <jchuang@chromium.org>
4 files changed
tree: 1adffc22006fd13ea66b7c240ae5a25e3aa91ca2
  1. libv4l-rockchip/
  2. OWNERS