linux-kernel - [PATCH] drm/amd/display: Fix warning comparing pointer to 0

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Message-Id: <1630920208-37789-1-git-send-email-jiapeng.chong@linux.alibaba.com>
Date:   Mon,  6 Sep 2021 17:23:28 +0800
From:   Jiapeng Chong <jiapeng.chong@...ux.alibaba.com>
To:     harry.wentland@....com
Cc:     sunpeng.li@....com, alexander.deucher@....com,
        christian.koenig@....com, Xinhui.Pan@....com, airlied@...ux.ie,
        daniel@...ll.ch, amd-gfx@...ts.freedesktop.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        chongjiapeng <jiapeng.chong@...ux.alibaba.com>
Subject: [PATCH] drm/amd/display: Fix warning comparing pointer to 0

From: chongjiapeng <jiapeng.chong@...ux.alibaba.com>

Fix the following coccicheck warning:

./drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c:643:35-36:
WARNING comparing pointer to 0.

Reported-by: Abaci Robot <abaci@...ux.alibaba.com>
Signed-off-by: chongjiapeng <jiapeng.chong@...ux.alibaba.com>
---
 drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 4a4894e..15491e3 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -640,7 +640,7 @@ void dcn31_clk_mgr_construct(
 				sizeof(struct dcn31_watermarks),
 				&clk_mgr->smu_wm_set.mc_address.quad_part);
 
-	if (clk_mgr->smu_wm_set.wm_set == 0) {
+	if (!clk_mgr->smu_wm_set.wm_set) {
 		clk_mgr->smu_wm_set.wm_set = &dummy_wms;
 		clk_mgr->smu_wm_set.mc_address.quad_part = 0;
 	}
-- 
1.8.3.1