linux-kernel - [PATCH 6/9] of/irq: Propagate errors in of_irq_to_resource

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Date:	Mon, 16 Sep 2013 10:32:03 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Stephen Warren <swarren@...dotorg.org>,
	Wolfram Sang <wsa@...-dreams.de>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <rob.herring@...xeda.com>,
	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Thomas Gleixner <tglx@...utronix.de>
Cc:	linux-kernel@...r.kernel.org, linux-gpio@...r.kernel.org,
	linux-tegra@...r.kernel.org, linux-i2c@...r.kernel.org,
	devicetree@...r.kernel.org
Subject: [PATCH 6/9] of/irq: Propagate errors in of_irq_to_resource_table()

Now that all helpers return precise error codes, this function can
propagate these errors to the caller properly.

Signed-off-by: Thierry Reding <treding@...dia.com>
---
 drivers/of/irq.c | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/drivers/of/irq.c b/drivers/of/irq.c
index 57396fd..c33a7fd 100644
--- a/drivers/of/irq.c
+++ b/drivers/of/irq.c
@@ -418,11 +418,17 @@ int of_irq_count(struct device_node *dev)
 int of_irq_to_resource_table(struct device_node *dev, struct resource *res,
 		int nr_irqs)
 {
-	int i;
+	int i, ret;
+
+	for (i = 0; i < nr_irqs; i++, res++) {
+		ret = __of_irq_to_resource(dev, i, res);
+		if (ret <= 0) {
+			if (ret < 0)
+				return ret;
 
-	for (i = 0; i < nr_irqs; i++, res++)
-		if (!of_irq_to_resource(dev, i, res))
 			break;
+		}
+	}
 
 	return i;
 }
-- 
1.8.4

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