From: Cristian Marussi <cristian.marussi@arm.com>
To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: sudeep.holla@arm.com, lukasz.luba@arm.com,
james.quinlan@broadcom.com, Jonathan.Cameron@Huawei.com,
egranata@google.com, jbhayana@google.com,
peter.hilber@opensynergy.com, mikhail.golubev@opensynergy.com,
Igor.Skalkin@opensynergy.com, cristian.marussi@arm.com
Subject: [PATCH 1/6] firmware: arm_scmi: rework scmi_sensors_protocol_init
Date: Mon, 5 Oct 2020 15:45:13 +0100 [thread overview]
Message-ID: <20201005144518.31832-2-cristian.marussi@arm.com> (raw)
In-Reply-To: <20201005144518.31832-1-cristian.marussi@arm.com>
Properly handle return values from initialization helpers and avoid
setting sensor_ops before sensor_priv.
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
---
drivers/firmware/arm_scmi/sensors.c | 16 ++++++++++------
1 file changed, 10 insertions(+), 6 deletions(-)
diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c
index 9703cf6356a0..fd1d682b5422 100644
--- a/drivers/firmware/arm_scmi/sensors.c
+++ b/drivers/firmware/arm_scmi/sensors.c
@@ -2,7 +2,7 @@
/*
* System Control and Management Interface (SCMI) Sensor Protocol
*
- * Copyright (C) 2018 ARM Ltd.
+ * Copyright (C) 2018-2020 ARM Ltd.
*/
#define pr_fmt(fmt) "SCMI Notifications SENSOR - " fmt
@@ -332,6 +332,7 @@ static const struct scmi_event_ops sensor_event_ops = {
static int scmi_sensors_protocol_init(struct scmi_handle *handle)
{
u32 version;
+ int ret;
struct sensors_info *sinfo;
scmi_version_get(handle, SCMI_PROTOCOL_SENSOR, &version);
@@ -342,15 +343,19 @@ static int scmi_sensors_protocol_init(struct scmi_handle *handle)
sinfo = devm_kzalloc(handle->dev, sizeof(*sinfo), GFP_KERNEL);
if (!sinfo)
return -ENOMEM;
+ sinfo->version = version;
- scmi_sensor_attributes_get(handle, sinfo);
-
+ ret = scmi_sensor_attributes_get(handle, sinfo);
+ if (ret)
+ return ret;
sinfo->sensors = devm_kcalloc(handle->dev, sinfo->num_sensors,
sizeof(*sinfo->sensors), GFP_KERNEL);
if (!sinfo->sensors)
return -ENOMEM;
- scmi_sensor_description_get(handle, sinfo);
+ ret = scmi_sensor_description_get(handle, sinfo);
+ if (ret)
+ return ret;
scmi_register_protocol_events(handle,
SCMI_PROTOCOL_SENSOR, SCMI_PROTO_QUEUE_SZ,
@@ -358,9 +363,8 @@ static int scmi_sensors_protocol_init(struct scmi_handle *handle)
ARRAY_SIZE(sensor_events),
sinfo->num_sensors);
- sinfo->version = version;
- handle->sensor_ops = &sensor_ops;
handle->sensor_priv = sinfo;
+ handle->sensor_ops = &sensor_ops;
return 0;
}
--
2.17.1
next prev parent reply other threads:[~2020-10-05 14:46 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-10-05 14:45 [PATCH 0/7] SCMIv3.0 Sensor Extensions Cristian Marussi
2020-10-05 14:45 ` Cristian Marussi [this message]
2020-10-05 14:45 ` [PATCH 2/6] firmware: arm_scmi: add SCMIv3.0 Sensors descriptors extensions Cristian Marussi
2020-10-05 14:45 ` [PATCH 3/6] hwmon: scmi: update hwmon internal scale data type Cristian Marussi
2020-10-05 14:45 ` [PATCH 4/6] firmware: arm_scmi: add SCMIv3.0 Sensors timestamped reads Cristian Marussi
2020-10-05 14:45 ` [PATCH 5/6] firmware: arm_scmi: add SCMIv3.0 Sensor configuration support Cristian Marussi
2020-10-05 14:45 ` [PATCH 6/6] firmware: arm_scmi: add SCMIv3.0 Sensor notifications Cristian Marussi
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