[PATCH] drm/sun4i: fix warning PTR_ERR_OR_ZERO can be used

[Hariprasad Kelam]

fix below warnings reported by coccicheck

./drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c:174:1-3: WARNING:
PTR_ERR_OR_ZERO can be used
./drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c:236:1-3: WARNING:
PTR_ERR_OR_ZERO can be used
./drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c:285:1-3: WARNING:
PTR_ERR_OR_ZERO can be used
./drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c:142:1-3: WARNING:
PTR_ERR_OR_ZERO can be used
./drivers/gpu/drm/sun4i/sun4i_dotclock.c:198:1-3: WARNING:
PTR_ERR_OR_ZERO can be used

Signed-off-by: Hariprasad Kelam <hariprasad.ke...@gmail.com>
---
 drivers/gpu/drm/sun4i/sun4i_dotclock.c      | 4 +---
 drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c  | 4 +---
 drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c      | 4 +---
 drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c | 4 +---
 drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c  | 4 +---
 5 files changed, 5 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/sun4i/sun4i_dotclock.c 
b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
index 2a15f2f..e0fd19d 100644
--- a/drivers/gpu/drm/sun4i/sun4i_dotclock.c
+++ b/drivers/gpu/drm/sun4i/sun4i_dotclock.c
@@ -195,10 +195,8 @@ int sun4i_dclk_create(struct device *dev, struct 
sun4i_tcon *tcon)
        dclk->hw.init = &init;
 
        tcon->dclk = clk_register(dev, &dclk->hw);
-       if (IS_ERR(tcon->dclk))
-               return PTR_ERR(tcon->dclk);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(tcon->dclk);
 }
 EXPORT_SYMBOL(sun4i_dclk_create);
 
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c 
b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
index e826da3..1e74040 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_ddc_clk.c
@@ -139,8 +139,6 @@ int sun4i_ddc_create(struct sun4i_hdmi *hdmi, struct clk 
*parent)
        ddc->m_offset = hdmi->variant->ddc_clk_m_offset;
 
        hdmi->ddc_clk = devm_clk_register(hdmi->dev, &ddc->hw);
-       if (IS_ERR(hdmi->ddc_clk))
-               return PTR_ERR(hdmi->ddc_clk);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(hdmi->ddc_clk);
 }
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c 
b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
index 58e9d37..b72f9c7 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_i2c.c
@@ -282,10 +282,8 @@ static int sun4i_hdmi_init_regmap_fields(struct sun4i_hdmi 
*hdmi)
        hdmi->field_ddc_sck_en =
                devm_regmap_field_alloc(hdmi->dev, hdmi->regmap,
                                        hdmi->variant->field_ddc_sck_en);
-       if (IS_ERR(hdmi->field_ddc_sck_en))
-               return PTR_ERR(hdmi->field_ddc_sck_en);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(hdmi->field_ddc_sck_en);
 }
 
 int sun4i_hdmi_i2c_create(struct device *dev, struct sun4i_hdmi *hdmi)
diff --git a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c 
b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
index 2598741..389c1c5 100644
--- a/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
+++ b/drivers/gpu/drm/sun4i/sun4i_hdmi_tmds_clk.c
@@ -233,8 +233,6 @@ int sun4i_tmds_create(struct sun4i_hdmi *hdmi)
        tmds->div_offset = hdmi->variant->tmds_clk_div_offset;
 
        hdmi->tmds_clk = devm_clk_register(hdmi->dev, &tmds->hw);
-       if (IS_ERR(hdmi->tmds_clk))
-               return PTR_ERR(hdmi->tmds_clk);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(hdmi->tmds_clk);
 }
diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c 
b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c
index a4d31fe..d52f581 100644
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy_clk.c
@@ -171,8 +171,6 @@ int sun8i_phy_clk_create(struct sun8i_hdmi_phy *phy, struct 
device *dev,
        priv->hw.init = &init;
 
        phy->clk_phy = devm_clk_register(dev, &priv->hw);
-       if (IS_ERR(phy->clk_phy))
-               return PTR_ERR(phy->clk_phy);
 
-       return 0;
+       return PTR_ERR_OR_ZERO(phy->clk_phy);
 }
-- 
2.7.4