drm/i915: Use mode_config.mutex in ironlake_panel_vdd_work
authorKeith Packard <keithp@keithp.com>
Mon, 31 Oct 2011 18:30:10 +0000 (11:30 -0700)
committerKeith Packard <keithp@keithp.com>
Tue, 1 Nov 2011 16:14:56 +0000 (09:14 -0700)
Use of the struct_mutex is not correct for locking in mode setting paths.

Signed-off-by: Keith Packard <keithp@keithp.com>

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