linux-kernel - [PATCH 2/4] of/platform: return error on of_platform_device_create

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Date:	Wed,  7 May 2014 16:48:16 -0500
From:	Rob Herring <robherring2@...il.com>
To:	Grant Likely <grant.likely@...aro.org>,
	linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Cc:	"Ivan T. Ivanov" <iivanov@...sol.com>,
	Josh Cartwright <joshc@...eaurora.org>,
	Courtney Cavin <courtney.cavin@...ymobile.com>,
	Bjorn Andersson <bjorn@...o.se>,
	Frank Rowand <frowand.list@...il.com>,
	Rob Herring <robh@...nel.org>
Subject: [PATCH 2/4] of/platform: return error on of_platform_device_create_pdata failure

From: Rob Herring <robh@...nel.org>

of_platform_populate does not return an error if creating the platform
device fails. This means almost any error from driver core cannot be
detected by the caller. Fix this.

Signed-off-by: Rob Herring <robh@...nel.org>
---
 drivers/of/platform.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/of/platform.c b/drivers/of/platform.c
index 404d1da..622aeb3 100644
--- a/drivers/of/platform.c
+++ b/drivers/of/platform.c
@@ -391,7 +391,9 @@ static int of_platform_bus_create(struct device_node *bus,
 	}
 
 	dev = of_platform_device_create_pdata(bus, bus_id, platform_data, parent);
-	if (!dev || !of_match_node(matches, bus))
+	if (!dev)
+		return -ENODEV;
+	if (!of_match_node(matches, bus))
 		return 0;
 
 	for_each_child_of_node(bus, child) {
-- 
1.9.1

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