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From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Rob Herring <robh+dt@kernel.org>,
	Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
	Daniel Scally <djrscally@gmail.com>,
	Heikki Krogerus <heikki.krogerus@linux.intel.com>,
	Sakari Ailus <sakari.ailus@linux.intel.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Hans de Goede <hdegoede@redhat.com>
Cc: linux-usb@vger.kernel.org, devicetree@vger.kernel.org,
	linux-kernel@vger.kernel.org, linux-acpi@vger.kernel.org,
	Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Subject: [PATCH v4 3/7] usb: typec: mux: Check dev_set_name() return value
Date: Sun,  6 Mar 2022 19:40:36 -0800	[thread overview]
Message-ID: <20220307034040.1111107-3-bjorn.andersson@linaro.org> (raw)
In-Reply-To: <20220307034040.1111107-1-bjorn.andersson@linaro.org>

It's possible that dev_set_name() returns -ENOMEM, catch and handle this.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
---

Changes since v3:
- New patch

 drivers/usb/typec/mux.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/typec/mux.c b/drivers/usb/typec/mux.c
index c8340de0ed49..d2aaf294b649 100644
--- a/drivers/usb/typec/mux.c
+++ b/drivers/usb/typec/mux.c
@@ -131,8 +131,11 @@ typec_switch_register(struct device *parent,
 	sw->dev.class = &typec_mux_class;
 	sw->dev.type = &typec_switch_dev_type;
 	sw->dev.driver_data = desc->drvdata;
-	dev_set_name(&sw->dev, "%s-switch",
-		     desc->name ? desc->name : dev_name(parent));
+	ret = dev_set_name(&sw->dev, "%s-switch", desc->name ? desc->name : dev_name(parent));
+	if (ret) {
+		put_device(&sw->dev);
+		return ERR_PTR(ret);
+	}
 
 	ret = device_add(&sw->dev);
 	if (ret) {
@@ -338,8 +341,11 @@ typec_mux_register(struct device *parent, const struct typec_mux_desc *desc)
 	mux->dev.class = &typec_mux_class;
 	mux->dev.type = &typec_mux_dev_type;
 	mux->dev.driver_data = desc->drvdata;
-	dev_set_name(&mux->dev, "%s-mux",
-		     desc->name ? desc->name : dev_name(parent));
+	ret = dev_set_name(&mux->dev, "%s-mux", desc->name ? desc->name : dev_name(parent));
+	if (ret) {
+		put_device(&mux->dev);
+		return ERR_PTR(ret);
+	}
 
 	ret = device_add(&mux->dev);
 	if (ret) {
-- 
2.33.1


  parent reply	other threads:[~2022-03-07  3:39 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-03-07  3:40 [PATCH v4 1/7] device property: Helper to match multiple connections Bjorn Andersson
2022-03-07  3:40 ` [PATCH v4 2/7] device property: Use multi-connection matchers for single case Bjorn Andersson
2022-03-07  3:40 ` Bjorn Andersson [this message]
2022-03-07 10:08   ` [PATCH v4 3/7] usb: typec: mux: Check dev_set_name() return value Andy Shevchenko
2022-03-07 14:33     ` Bjorn Andersson
2022-03-07 14:52       ` Heikki Krogerus
2022-03-07  3:40 ` [PATCH v4 4/7] usb: typec: mux: Introduce indirection Bjorn Andersson
2022-03-07  3:40 ` [PATCH v4 5/7] usb: typec: mux: Allow multiple mux_devs per mux Bjorn Andersson
2022-03-07  3:40 ` [PATCH v4 6/7] dt-bindings: usb: Add binding for fcs,fsa4480 Bjorn Andersson
2022-03-07  3:40 ` [PATCH v4 7/7] usb: typec: mux: Add On Semi fsa4480 driver Bjorn Andersson
2022-03-07 10:16   ` Andy Shevchenko
2022-03-07 14:48     ` Bjorn Andersson
2022-03-07 16:13       ` Andy Shevchenko
2022-03-07 21:04         ` Bjorn Andersson
2022-03-07 22:13           ` Andy Shevchenko
2022-03-08  0:01             ` Bjorn Andersson
2022-03-07 10:05 ` [PATCH v4 1/7] device property: Helper to match multiple connections Andy Shevchenko
2022-03-07 19:13   ` Bjorn Andersson

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