From: Tian Tao <tiantao6@hisilicon.com>
Date: Mon, 19 Oct 2020 06:04:22 +0000 (+0800)
Subject: drm/msm: Remove redundant null check
X-Git-Tag: io_uring-5.11-2020-12-23~116^2~1^2~80
X-Git-Url: https://git.kernel.dk/?a=commitdiff_plain;h=dd29bd41d4c6e1fc837a28f9a68bf344500dcced;p=linux-block.git

drm/msm: Remove redundant null check

clk_prepare_enable() and clk_disable_unprepare() will check
NULL clock parameter, so It is not necessary to add additional checks.

Signed-off-by: Tian Tao <tiantao6@hisilicon.com>
Reviewed-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@chromium.org>
---

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 3f192a9df0a7..4426f5074dfc 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -177,15 +177,12 @@ static int disable_clk(struct msm_gpu *gpu)
 
 static int enable_axi(struct msm_gpu *gpu)
 {
-	if (gpu->ebi1_clk)
-		clk_prepare_enable(gpu->ebi1_clk);
-	return 0;
+	return clk_prepare_enable(gpu->ebi1_clk);
 }
 
 static int disable_axi(struct msm_gpu *gpu)
 {
-	if (gpu->ebi1_clk)
-		clk_disable_unprepare(gpu->ebi1_clk);
+	clk_disable_unprepare(gpu->ebi1_clk);
 	return 0;
 }