linux-kernel - [PATCH AUTOSEL 6.6 67/83] drm/amd/display: Run DC_LOG_DC after checking link->link

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Message-ID: <20240801002107.3934037-67-sashal@kernel.org>
Date: Wed, 31 Jul 2024 20:18:22 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Alex Hung <alex.hung@....com>,
	Rodrigo Siqueira <rodrigo.siqueira@....com>,
	Daniel Wheeler <daniel.wheeler@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	harry.wentland@....com,
	sunpeng.li@....com,
	Rodrigo.Siqueira@....com,
	christian.koenig@....com,
	Xinhui.Pan@....com,
	airlied@...il.com,
	daniel@...ll.ch,
	hamza.mahfooz@....com,
	lewis.huang@....com,
	george.shen@....com,
	mghaddar@....com,
	chiahsuan.chung@....com,
	dennis.chan@....com,
	srinivasan.shanmugam@....com,
	Bhawanpreet.Lakha@....com,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 6.6 67/83] drm/amd/display: Run DC_LOG_DC after checking link->link_enc

From: Alex Hung <alex.hung@....com>

[ Upstream commit 3a82f62b0d9d7687eac47603bb6cd14a50fa718b ]

[WHAT]
The DC_LOG_DC should be run after link->link_enc is checked, not before.

This fixes 1 REVERSE_INULL issue reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@....com>
Signed-off-by: Alex Hung <alex.hung@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/link/link_factory.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/link/link_factory.c b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
index 6fc0cb918b9e5..00119aa395589 100644
--- a/drivers/gpu/drm/amd/display/dc/link/link_factory.c
+++ b/drivers/gpu/drm/amd/display/dc/link/link_factory.c
@@ -629,14 +629,14 @@ static bool construct_phy(struct dc_link *link,
 	link->link_enc =
 		link->dc->res_pool->funcs->link_enc_create(dc_ctx, &enc_init_data);
 
-	DC_LOG_DC("BIOS object table - DP_IS_USB_C: %d", link->link_enc->features.flags.bits.DP_IS_USB_C);
-	DC_LOG_DC("BIOS object table - IS_DP2_CAPABLE: %d", link->link_enc->features.flags.bits.IS_DP2_CAPABLE);
-
 	if (!link->link_enc) {
 		DC_ERROR("Failed to create link encoder!\n");
 		goto link_enc_create_fail;
 	}
 
+	DC_LOG_DC("BIOS object table - DP_IS_USB_C: %d", link->link_enc->features.flags.bits.DP_IS_USB_C);
+	DC_LOG_DC("BIOS object table - IS_DP2_CAPABLE: %d", link->link_enc->features.flags.bits.IS_DP2_CAPABLE);
+
 	/* Update link encoder tracking variables. These are used for the dynamic
 	 * assignment of link encoders to streams.
 	 */
-- 
2.43.0