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>

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c
index bca09ea24632424f6899ff5c9ac9b4a1017a2300..3194e544ee27b902c4a300d2972781a832d54997 100644 (file)
--- 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)