drm/fsl-dcu: use PTR_ERR_OR_ZERO() to simplify the code

Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR.

Generated by: scripts/coccinelle/api/ptr_ret.cocci

Signed-off-by: Wei Yongjun <weiyj.lk@gmail.com>
Signed-off-by: Stefan Agner <stefan@agner.ch>

1 files changed, 1 insertions, 4 deletions

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c
index bca09ea24632..3194e544ee27 100644
--- a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c
+++ b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c
@@ -57,10 +57,7 @@ static int fsl_tcon_init_regmap(struct device *dev,
 
         tcon->regs = devm_regmap_init_mmio(dev, regs,
                                            &fsl_tcon_regmap_config);
-        if (IS_ERR(tcon->regs))
-                return PTR_ERR(tcon->regs);
-
-        return 0;
+        return PTR_ERR_OR_ZERO(tcon->regs);
 }
 
 struct fsl_tcon *fsl_tcon_init(struct device *dev)