[PATCH] drm/i915/sdvo: Fix harmless build warning

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Removing the following harmless build warning to let compiler happy.

drivers/gpu/drm/i915/intel_sdvo.c: In function 'intel_sdvo_mode_set':
drivers/gpu/drm/i915/intel_sdvo.c:1097: warning: 'rate' may be used
uninitialized in this function

Signed-off-by: Dongdong Deng <dongdong.deng@xxxxxxxxxxxxx>
CC: David Airlie <airlied@xxxxxxxx>
CC: dri-devel@xxxxxxxxxxxxxxxxxxxxx
---
 drivers/gpu/drm/i915/intel_sdvo.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index ee73e42..6899f90 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1170,7 +1170,8 @@ static void intel_sdvo_mode_set(struct drm_encoder *encoder,
 	switch (sdvo_pixel_multiply) {
 	case 1: rate = SDVO_CLOCK_RATE_MULT_1X; break;
 	case 2: rate = SDVO_CLOCK_RATE_MULT_2X; break;
-	case 4: rate = SDVO_CLOCK_RATE_MULT_4X; break;
+	case 4:
+	default: rate = SDVO_CLOCK_RATE_MULT_4X;
 	}
 	if (!intel_sdvo_set_clock_rate_mult(intel_sdvo, rate))
 		return;
-- 
1.6.0.4

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