From: Rob Clark <robdclark@gmail.com>
Date: Thu, 30 Oct 2014 17:39:04 +0000 (-0400)
Subject: drm/vmwgfx: fix lock breakage
X-Git-Tag: omap-for-v3.19/fixes-not-urgent-part1~11^2~1^2~2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=21e88620aa21b48d4f62d29275e3e2944a5ea2b5;p=pandora-kernel.git

drm/vmwgfx: fix lock breakage

After:

commit d059f652e73c35678d28d4cd09ab2cec89696af9
Author:     Daniel Vetter <daniel.vetter@ffwll.ch>
AuthorDate: Fri Jul 25 18:07:40 2014 +0200

    drm: Handle legacy per-crtc locking with full acquire ctx

drm_mode_cursor_common() was switched to use drm_modeset_(un)lock_crtc()
which uses full aquire ctx.  So dropping/reaquiring the lock via
drm_modeset_(un)lock() directly isn't the right thing to do, as lockdep
kindly points out.

The 'FIXME's about sorting out whether vmwgfx *really* needs to lock-all
for cursor updates still apply.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Jakob Bornecrantz <jakob@vmware.com>
Tested-by: Thomas Hellstrom <thellstrom@vmware.com>
---

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