[Intel-gfx] [PATCH] drm/i915: fix sparse warning for using false as NULL

[Jani Nikula]

drivers/gpu/drm/i915/intel_dpll_mgr.c:1200:32: warning: Using plain integer as NULL pointer

Fixes: 304b65cbdc8d ("drm/i915: Move SKL/KLB pll selection logic to intel_dpll_mgr.c")
Signed-off-by: Jani Nikula <jani.nikula at intel.com>
---
 drivers/gpu/drm/i915/intel_dpll_mgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dpll_mgr.c b/drivers/gpu/drm/i915/intel_dpll_mgr.c
index 74d5aecc0be5..e53d57c39056 100644
--- a/drivers/gpu/drm/i915/intel_dpll_mgr.c
+++ b/drivers/gpu/drm/i915/intel_dpll_mgr.c
@@ -1197,7 +1197,7 @@ skl_get_dpll(struct intel_crtc *crtc, struct intel_crtc_state *crtc_state,
 		ctrl1 |= DPLL_CTRL1_HDMI_MODE(0);
 
 		if (!skl_ddi_calculate_wrpll(clock * 1000, &wrpll_params))
-			return false;
+			return NULL;
 
 		cfgcr1 = DPLL_CFGCR1_FREQ_ENABLE |
 			 DPLL_CFGCR1_DCO_FRACTION(wrpll_params.dco_fraction) |
-- 
2.1.4