[PATCH] drm/msm: Remove redundant null check

[Tian Tao]

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 <tiant...@hisilicon.com>
---
 drivers/gpu/drm/msm/msm_gpu.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/msm/msm_gpu.c b/drivers/gpu/drm/msm/msm_gpu.c
index 57ddc94..25bc654 100644
--- a/drivers/gpu/drm/msm/msm_gpu.c
+++ b/drivers/gpu/drm/msm/msm_gpu.c
@@ -175,15 +175,12 @@ 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;
 }
 
-- 
2.7.4