linux-kernel - [PATCH AUTOSEL 5.6 45/62] drm/amd/display: fix counter in wait_for_no_pipes

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Date:   Thu, 14 May 2020 14:51:30 -0400
From:   Sasha Levin <sashal@...nel.org>
To:     linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:     Roman Li <roman.li@....com>, Zhan Liu <Zhan.Liu@....com>,
        Aurabindo Pillai <aurabindo.pillai@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Sasha Levin <sashal@...nel.org>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.6 45/62] drm/amd/display: fix counter in wait_for_no_pipes_pending

From: Roman Li <roman.li@....com>

[ Upstream commit 80797dd6f1a525d1160c463d6a9f9d29af182cbb ]

[Why]
Wait counter is not being reset for each pipe.

[How]
Move counter reset into pipe loop scope.

Signed-off-by: Roman Li <roman.li@....com>
Reviewed-by: Zhan Liu <Zhan.Liu@....com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 188e51600070b..b3987124183a7 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -803,11 +803,10 @@ static void disable_dangling_plane(struct dc *dc, struct dc_state *context)
 static void wait_for_no_pipes_pending(struct dc *dc, struct dc_state *context)
 {
 	int i;
-	int count = 0;
-	struct pipe_ctx *pipe;
 	PERF_TRACE();
 	for (i = 0; i < MAX_PIPES; i++) {
-		pipe = &context->res_ctx.pipe_ctx[i];
+		int count = 0;
+		struct pipe_ctx *pipe = &context->res_ctx.pipe_ctx[i];
 
 		if (!pipe->plane_state)
 			continue;
-- 
2.20.1