[Intel-gfx] [PATCH] drm/i915: Initialize 'data' in intel_dsi_dcs_backlight.c

[Balasubramaniam, Hari Chand]

variable 'data'is used uninitialized in this function. thus, 'function dcs_get_backlight'
will return unwanted value/fail.

Thus, adding NULL initialized to 'data' variable will solve the return
failure happening.

v2: Change commit message to reflect upstream with proper message

Change-Id: I3e2d3369601c119d3527efc454ea4367d7306416
Fixes: 90198355b83c ("drm/i915/dsi: Add DCS control for Panel PWM")
Cc: Jani Nikula <jani.nikula at intel.com>
Cc: Daniel Vetter <daniel.vetter at intel.com>
Cc: Yetunde Adebisi <yetundex.adebisi at intel.com>
Cc: Deepak M <m.deepak at intel.com>
Cc: Jani Nikula <jani.nikula at linux.intel.com>
Signed-off-by: Balasubramaniam, Hari Chand <hari.chand.balasubramaniam at intel.com>
---
 drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
index ac7c602..eec4585 100644
--- a/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
+++ b/drivers/gpu/drm/i915/intel_dsi_dcs_backlight.c
@@ -46,7 +46,7 @@ static u32 dcs_get_backlight(struct intel_connector *connector)
 	struct intel_encoder *encoder = connector->encoder;
 	struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
 	struct mipi_dsi_device *dsi_device;
-	u8 data;
+	u8 data = 0;
 	enum port port;
 
 	/* FIXME: Need to take care of 16 bit brightness level */
-- 
1.9.1