linux-kernel - [PATCH -next] drm/fsl-dcu: use PTR_ERR_OR

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Date:	Mon, 25 Jul 2016 07:08:07 +0000
From:	Wei Yongjun <weiyj.lk@...il.com>
To:	Stefan Agner <stefan@...er.ch>,
	Alison Wang <alison.wang@...escale.com>,
	David Airlie <airlied@...ux.ie>
Cc:	Wei Yongjun <weiyj.lk@...il.com>, dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH -next] 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@...il.com>
---
 drivers/gpu/drm/fsl-dcu/fsl_tcon.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/fsl-dcu/fsl_tcon.c b/drivers/gpu/drm/fsl-dcu/fsl_tcon.c
index bca09ea..3194e54 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)