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| author | Cristian Marussi <cristian.marussi@arm.com> | 2020-11-19 17:49:01 +0000 |
|---|---|---|
| committer | Sudeep Holla <sudeep.holla@arm.com> | 2020-11-20 10:41:55 +0000 |
| commit | f25fb6de67205c71c542f51d7d2fbf16de16362a (patch) | |
| tree | 13a5d9351a1c6336eba2817c8a8b5010ae719a1e /drivers/firmware/arm_scmi | |
| parent | 6bbdb46c4b1bd57839c9c0a110bd81b0be0a4046 (diff) | |
| download | linux-f25fb6de67205c71c542f51d7d2fbf16de16362a.tar.gz linux-f25fb6de67205c71c542f51d7d2fbf16de16362a.tar.bz2 linux-f25fb6de67205c71c542f51d7d2fbf16de16362a.zip | |
firmware: arm_scmi: Rework scmi_sensors_protocol_init
Properly handle return values from initialization helpers and avoid
setting sensor_ops before sensor_priv.
Link: https://lore.kernel.org/r/20201119174906.43862-2-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Diffstat (limited to 'drivers/firmware/arm_scmi')
| -rw-r--r-- | drivers/firmware/arm_scmi/sensors.c | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/drivers/firmware/arm_scmi/sensors.c b/drivers/firmware/arm_scmi/sensors.c index b4232d611033..6aaff478d032 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 @@ -334,6 +334,7 @@ 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); @@ -344,15 +345,19 @@ 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, @@ -360,9 +365,8 @@ 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; } |