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drm/i915: Silence GCC warning for cmn_a_well

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Just make the logic simple enough for even GCC to understand (and
foolproof against random changes):

drivers/gpu/drm/i915/intel_runtime_pm.c: warning: 'cmn_a_well' may be
used uninitialized in this function [-Wuninitialized]:  => 871:23

Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1471284383-22324-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Imre Deak <imre.deak@intel.com>
This commit is contained in:
Chris Wilson 2016-08-15 19:06:23 +01:00
parent 1255501d86
commit ca99d8781f
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/i915/intel_runtime_pm.c
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@ -856,7 +856,7 @@ static void bxt_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
struct i915_power_well *power_well)
{
enum skl_disp_power_wells power_well_id = power_well->data;
struct i915_power_well *cmn_a_well;
struct i915_power_well *cmn_a_well = NULL;
if (power_well_id == BXT_DPIO_CMN_BC) {
/*
@ -869,7 +869,7 @@ static void bxt_dpio_cmn_power_well_enable(struct drm_i915_private *dev_priv,
bxt_ddi_phy_init(dev_priv, bxt_power_well_to_phy(power_well));
if (power_well_id == BXT_DPIO_CMN_BC)
if (cmn_a_well)
intel_power_well_put(dev_priv, cmn_a_well);
}