drm/dp-mst-helper: Don't use uninitialized fields of the sideband message header
authorDamien Lespiau <damien.lespiau@intel.com>
Mon, 14 Jul 2014 11:13:18 +0000 (12:13 +0100)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Fri, 18 Jul 2014 13:39:29 +0000 (15:39 +0200)
commitbf3719c04ee3322b0f6d13c078e3ca4c3b7e3ead
tree4e3e1ad856993e300fb62d0a3d5d1451efd4bba3
parent7389ad4b6515c2de6402bfafdfebf0b319790d16
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>
drivers/gpu/drm/drm_dp_mst_topology.c