From bf3719c04ee3322b0f6d13c078e3ca4c3b7e3ead Mon Sep 17 00:00:00 2001
From: Damien Lespiau <damien.lespiau@intel.com>
Date: Mon, 14 Jul 2014 12:13:18 +0100
Subject: [PATCH] drm/dp-mst-helper: Don't use uninitialized fields of the
 sideband message header

We could be using uninitialized fields of the header in
drm_dp_encode_sideband_msg_hdr(), for instance hdr->somt is set to 1 in
the first patcket but never set to 0 otherwise.

Always clear the header at the start then.

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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