[PATCH 22/26] drm/amd/display: Remove unnecessary assignments

[Rodrigo Siqueira]

From: Alex Hung <alex.hung at amd.com>

[WHAT & HOW]
TimeForFetchingMetaPTE, TimeForFetchingRowInVBlank and
LinesToRequestPrefetchPixelData are local variables. They
are freed when CalculatePrefetchSchedule() ends and need
not clearing explicitly.

This fixes 21 UNUSED_VALUE issues reported by Coverity.

Reviewed-by: Nevenko Stupar <nevenko.stupar at amd.com>
Signed-off-by: Alex Hung <alex.hung at amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c | 3 ---
 .../gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c   | 3 ---
 drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c | 3 ---
 drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c | 3 ---
 drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c | 3 ---
 .../gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c   | 3 ---
 .../drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c    | 3 ---
 7 files changed, 21 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
index 565f3c492477..0c8c4a080c50 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20.c
@@ -785,12 +785,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBW = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
index 9d6675ecc5f1..c935903b68e1 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn20/display_mode_vba_20v2.c
@@ -845,12 +845,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBW = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
index eb3ed965e48b..cd8cca651419 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn21/display_mode_vba_21.c
@@ -1049,12 +1049,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBWLuma = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
index 4822fad6ce3a..cee1b351e105 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn30/display_mode_vba_30.c
@@ -1280,12 +1280,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBWLuma = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
index 2b275e680379..f567a9023682 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn31/display_mode_vba_31.c
@@ -1444,12 +1444,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBWLuma = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
index debfa31583a6..5865e8fa2d8e 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn314/display_mode_vba_314.c
@@ -1461,12 +1461,9 @@ static bool CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBWLuma = 0;
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
index d92fb428ee96..86ac7d59fd32 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c
@@ -4097,12 +4097,9 @@ bool dml32_CalculatePrefetchSchedule(
 
 	if (MyError) {
 		*PrefetchBandwidth = 0;
-		TimeForFetchingMetaPTE = 0;
-		TimeForFetchingRowInVBlank = 0;
 		*DestinationLinesToRequestVMInVBlank = 0;
 		*DestinationLinesToRequestRowInVBlank = 0;
 		*DestinationLinesForPrefetch = 0;
-		LinesToRequestPrefetchPixelData = 0;
 		*VRatioPrefetchY = 0;
 		*VRatioPrefetchC = 0;
 		*RequiredPrefetchPixDataBWLuma = 0;
-- 
2.45.2