linux-kernel - [RFC PATCH 3/5] w1: report errors returned by w1_family

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Date:   Wed, 26 Oct 2016 16:57:54 +0200
From:   Antoine Tenart <antoine.tenart@...e-electrons.com>
To:     maxime.ripard@...e-electrons.com, pantelis.antoniou@...sulko.com,
        mark.rutland@....com, sboyd@...eaurora.org
Cc:     Antoine Tenart <antoine.tenart@...e-electrons.com>,
        thomas.petazzoni@...e-electrons.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: [RFC PATCH 3/5] w1: report errors returned by w1_family_notify

Signed-off-by: Antoine Tenart <antoine.tenart@...e-electrons.com>
---
 drivers/w1/w1.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/w1/w1.c b/drivers/w1/w1.c
index bb34362e930a..80d0cc4e6e7f 100644
--- a/drivers/w1/w1.c
+++ b/drivers/w1/w1.c
@@ -702,7 +702,9 @@ static int __w1_attach_slave_device(struct w1_slave *sl)
 			dev_name(&sl->dev), err);
 		return err;
 	}
-	w1_family_notify(BUS_NOTIFY_ADD_DEVICE, sl);
+	err = w1_family_notify(BUS_NOTIFY_ADD_DEVICE, sl);
+	if (err)
+		return err;
 
 	dev_set_uevent_suppress(&sl->dev, false);
 	kobject_uevent(&sl->dev.kobj, KOBJ_ADD);
-- 
2.10.1