linux-kernel - [PATCH 4.4 21/58] drm: rcar-du: fix backport bug

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Message-Id: <20170809194147.343050174@linuxfoundation.org>
Date:   Wed,  9 Aug 2017 12:41:33 -0700
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Ben Hutchings <ben.hutchings@...ethink.co.uk>,
        Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>,
        thongsyho <thong.ho.px@....renesas.com>,
        Nhan Nguyen <nhan.nguyen.yb@...esas.com>
Subject: [PATCH 4.4 21/58] drm: rcar-du: fix backport bug

4.4-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Greg Kroah-Hartman <gregkh@...uxfoundation.org>

In the backport of commit 4f7b0d263833 ("drm: rcar-du: Simplify and fix
probe error handling"), which is commit 8255d26322a3 in this tree, the
error handling path was incorrect.  This patch fixes it up.

Reported-by: Ben Hutchings <ben.hutchings@...ethink.co.uk>
Cc: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>
Cc: thongsyho <thong.ho.px@....renesas.com>
Cc: Nhan Nguyen <nhan.nguyen.yb@...esas.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/rcar-du/rcar_du_drv.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/rcar-du/rcar_du_drv.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_drv.c
@@ -296,7 +296,7 @@ static int rcar_du_probe(struct platform
 	mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	rcdu->mmio = devm_ioremap_resource(&pdev->dev, mem);
 	if (IS_ERR(rcdu->mmio))
-		ret = PTR_ERR(rcdu->mmio);
+		return PTR_ERR(rcdu->mmio);
 
 	/* DRM/KMS objects */
 	ddev = drm_dev_alloc(&rcar_du_driver, &pdev->dev);