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firmware: arm_scmi: Improve checks in the info_get operations

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[ Upstream commit 1ecb7d27b1af6705e9a4e94415b4d8cc8cf2fbfb ]

SCMI protocols abstract and expose a number of protocol specific
resources like clocks, sensors and so on. Information about such
specific domain resources are generally exposed via an `info_get`
protocol operation.

Improve the sanity check on these operations where needed.

Link: https://lore.kernel.org/r/20220817172731.1185305-3-cristian.marussi@arm.com
Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Cristian Marussi
2022-08-17 18:27:27 +01:00
committed by Greg Kroah-Hartman
parent 64b79e6328
commit 9f81dbb934
3 changed files with 10 additions and 3 deletions
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4
include/linux/scmi_protocol.h
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@@ -74,7 +74,7 @@ struct scmi_protocol_handle;
struct scmi_clk_proto_ops {
int (*count_get)(const struct scmi_protocol_handle *ph);
const struct scmi_clock_info *(*info_get)
const struct scmi_clock_info __must_check *(*info_get)
(const struct scmi_protocol_handle *ph, u32 clk_id);
int (*rate_get)(const struct scmi_protocol_handle *ph, u32 clk_id,
u64 *rate);
@@ -452,7 +452,7 @@ enum scmi_sensor_class {
*/
struct scmi_sensor_proto_ops {
int (*count_get)(const struct scmi_protocol_handle *ph);
const struct scmi_sensor_info *(*info_get)
const struct scmi_sensor_info __must_check *(*info_get)
(const struct scmi_protocol_handle *ph, u32 sensor_id);
int (*trip_point_config)(const struct scmi_protocol_handle *ph,
u32 sensor_id, u8 trip_id, u64 trip_value);