linux-kernel - [PATCH v3 1/7] pinctrl: sunxi: check clk_prepare

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Message-Id: <1397137966-30818-2-git-send-email-boris.brezillon@free-electrons.com>
Date:	Thu, 10 Apr 2014 15:52:40 +0200
From:	Boris BREZILLON <boris.brezillon@...e-electrons.com>
To:	Randy Dunlap <rdunlap@...radead.org>,
	Maxime Ripard <maxime.ripard@...e-electrons.com>,
	Emilio López <emilio@...pez.com.ar>,
	Mike Turquette <mturquette@...aro.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Chen-Yu Tsai <wens@...e.org>,
	Hans de Goede <hdegoede@...hat.com>
Cc:	Shuge <shuge@...winnertech.com>, kevin@...winnertech.com,
	devicetree@...r.kernel.org, linux-doc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	dev@...ux-sunxi.org,
	Boris BREZILLON <boris.brezillon@...e-electrons.com>
Subject: [PATCH v3 1/7] pinctrl: sunxi: check clk_prepare_enable return value

Check the clk_prepare_enable return value to avoid false positive probe.

Signed-off-by: Boris BREZILLON <boris.brezillon@...e-electrons.com>
---
 drivers/pinctrl/pinctrl-sunxi.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-sunxi.c b/drivers/pinctrl/pinctrl-sunxi.c
index f9fabe9..2d9ca1c 100644
--- a/drivers/pinctrl/pinctrl-sunxi.c
+++ b/drivers/pinctrl/pinctrl-sunxi.c
@@ -884,7 +884,9 @@ static int sunxi_pinctrl_probe(struct platform_device *pdev)
 		goto gpiochip_error;
 	}
 
-	clk_prepare_enable(clk);
+	ret = clk_prepare_enable(clk);
+	if (ret)
+		goto gpiochip_error;
 
 	pctl->irq = irq_of_parse_and_map(node, 0);
 	if (!pctl->irq) {
-- 
1.8.3.2

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