linux-kernel - [PATCH] drm/amd/display: Fix && vs || typos

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Date: Fri, 9 Feb 2024 16:02:42 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: Srinivasan Shanmugam <srinivasan.shanmugam@....com>
Cc: Harry Wentland <harry.wentland@....com>, 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>,
	Nicholas Kazlauskas <nicholas.kazlauskas@....com>,
	Anthony Koo <Anthony.Koo@....com>,
	Josip Pavic <Josip.Pavic@....com>, Leon Huang <Leon.Huang1@....com>,
	Mounika Adhuri <moadhuri@....com>,
	Lewis Huang <lewis.huang@....com>, amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
	kernel-janitors@...r.kernel.org
Subject: [PATCH] drm/amd/display: Fix && vs || typos

These ANDs should be ORs or it will lead to a NULL dereference.

Fixes: fb5a3d037082 ("drm/amd/display: Add NULL test for 'timing generator' in 'dcn21_set_pipe()'")
Fixes: 886571d217d7 ("drm/amd/display: Fix 'panel_cntl' could be null in 'dcn21_set_backlight_level()'")
Signed-off-by: Dan Carpenter <dan.carpenter@...aro.org>
---
 drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
index 5c7f380a84f9..7252f5f781f0 100644
--- a/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
+++ b/drivers/gpu/drm/amd/display/dc/hwss/dcn21/dcn21_hwseq.c
@@ -211,7 +211,7 @@ void dcn21_set_pipe(struct pipe_ctx *pipe_ctx)
 	struct dmcu *dmcu = pipe_ctx->stream->ctx->dc->res_pool->dmcu;
 	uint32_t otg_inst;
 
-	if (!abm && !tg && !panel_cntl)
+	if (!abm || !tg || !panel_cntl)
 		return;
 
 	otg_inst = tg->inst;
@@ -245,7 +245,7 @@ bool dcn21_set_backlight_level(struct pipe_ctx *pipe_ctx,
 	struct panel_cntl *panel_cntl = pipe_ctx->stream->link->panel_cntl;
 	uint32_t otg_inst;
 
-	if (!abm && !tg && !panel_cntl)
+	if (!abm || !tg || !panel_cntl)
 		return false;
 
 	otg_inst = tg->inst;
-- 
2.43.0