linux-kernel - [PATCH] drm/amd/display: remove an unnecessary NULL check

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Date:   Mon,  6 Mar 2023 11:28:24 +0000
From:   Danila Chernetsov <listdansp@...l.ru>
To:     Harry Wentland <harry.wentland@....com>
Cc:     Danila Chernetsov <listdansp@...l.ru>, Leo Li <sunpeng.li@....com>,
        Rodrigo Siqueira <Rodrigo.Siqueira@....com>,
        Alex Deucher <alexander.deucher@....com>,
        Christian König <christian.koenig@....com>,
        "Pan, Xinhui" <Xinhui.Pan@....com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        lvc-project@...uxtesting.org
Subject: [PATCH] drm/amd/display: remove an unnecessary NULL check

The 'pipe' can't be NULL because it points to an element of array.

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixed: 7cf2c840c6b5 (drm/amd/display: Commit validation set from state)
Signed-off-by: Danila Chernetsov <listdansp@...l.ru>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 0cb8d1f934d1..d3b850372eb3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1854,7 +1854,7 @@ static enum dc_status dc_commit_state_no_check(struct dc *dc, struct dc_state *c
 		for (k = 0; k < MAX_PIPES; k++) {
 			pipe = &context->res_ctx.pipe_ctx[k];
 
-			for (l = 0 ; pipe && l < context->stream_count; l++)  {
+			for (l = 0 ; l < context->stream_count; l++)  {
 				if (context->streams[l] &&
 					context->streams[l] == pipe->stream &&
 					dc->hwss.setup_stereo)
-- 
2.25.1