From: Harry Wentland <harry.wentland@amd.com>
Date: Tue, 8 Aug 2017 21:01:20 -0400
Subject: drm/amd/display: Fix warnings about uninitialized use
Git-commit: 533ed6c708334b697254ff831972b657f5c98a40
Patch-mainline: v4.15-rc1
References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Petr Tesarik <ptesarik@suse.com>
---
 drivers/gpu/drm/amd/display/dc/core/dc_link.c  |    2 +-
 drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c |    2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -541,7 +541,7 @@ bool dc_link_detect(struct dc_link *link
 	struct audio_support *aud_support = &link->dc->res_pool->audio_support;
 	enum dc_edid_status edid_status;
 	struct dc_context *dc_ctx = link->ctx;
-	struct dc_sink *sink;
+	struct dc_sink *sink = NULL;
 	enum dc_connection_type new_connection_type = dc_connection_none;
 
 	if (link->connector_signal == SIGNAL_TYPE_VIRTUAL)
--- a/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c
+++ b/drivers/gpu/drm/amd/display/dc/i2caux/i2caux.c
@@ -265,6 +265,8 @@ static bool get_hw_supported_ddc_line(
 {
 	enum gpio_ddc_line line_found;
 
+	*line = GPIO_DDC_LINE_UNKNOWN;
+
 	if (!ddc) {
 		BREAK_TO_DEBUGGER();
 		return false;