diff options
| -rw-r--r-- | drivers/acpi/cppc_acpi.c | 9 | ||||
| -rw-r--r-- | drivers/acpi/property.c | 14 | ||||
| -rw-r--r-- | include/linux/acpi.h | 7 |
3 files changed, 13 insertions, 17 deletions
diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c index a85c351589be..b62c87b8ce4a 100644 --- a/drivers/acpi/cppc_acpi.c +++ b/drivers/acpi/cppc_acpi.c @@ -998,7 +998,14 @@ static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val) static int cppc_get_perf(int cpunum, enum cppc_regs reg_idx, u64 *perf) { struct cpc_desc *cpc_desc = per_cpu(cpc_desc_ptr, cpunum); - struct cpc_register_resource *reg = &cpc_desc->cpc_regs[reg_idx]; + struct cpc_register_resource *reg; + + if (!cpc_desc) { + pr_debug("No CPC descriptor for CPU:%d\n", cpunum); + return -ENODEV; + } + + reg = &cpc_desc->cpc_regs[reg_idx]; if (CPC_IN_PCC(reg)) { int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpunum); diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c index e312ebaed8db..2366f54d8e9c 100644 --- a/drivers/acpi/property.c +++ b/drivers/acpi/property.c @@ -1084,21 +1084,17 @@ struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, * Returns parent node of an ACPI device or data firmware node or %NULL if * not available. */ -struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode) +static struct fwnode_handle * +acpi_node_get_parent(const struct fwnode_handle *fwnode) { if (is_acpi_data_node(fwnode)) { /* All data nodes have parent pointer so just return that */ return to_acpi_data_node(fwnode)->parent; } else if (is_acpi_device_node(fwnode)) { - acpi_handle handle, parent_handle; - - handle = to_acpi_device_node(fwnode)->handle; - if (ACPI_SUCCESS(acpi_get_parent(handle, &parent_handle))) { - struct acpi_device *adev; + struct device *dev = to_acpi_device_node(fwnode)->dev.parent; - if (!acpi_bus_get_device(parent_handle, &adev)) - return acpi_fwnode_handle(adev); - } + if (dev) + return acpi_fwnode_handle(to_acpi_device(dev)); } return NULL; diff --git a/include/linux/acpi.h b/include/linux/acpi.h index 668d007f0917..b28f8790192a 100644 --- a/include/linux/acpi.h +++ b/include/linux/acpi.h @@ -1182,7 +1182,6 @@ int acpi_node_prop_get(const struct fwnode_handle *fwnode, const char *propname, struct fwnode_handle *acpi_get_next_subnode(const struct fwnode_handle *fwnode, struct fwnode_handle *child); -struct fwnode_handle *acpi_node_get_parent(const struct fwnode_handle *fwnode); struct acpi_probe_entry; typedef bool (*acpi_probe_entry_validate_subtbl)(struct acpi_subtable_header *, @@ -1288,12 +1287,6 @@ acpi_get_next_subnode(const struct fwnode_handle *fwnode, } static inline struct fwnode_handle * -acpi_node_get_parent(const struct fwnode_handle *fwnode) -{ - return NULL; -} - -static inline struct fwnode_handle * acpi_graph_get_next_endpoint(const struct fwnode_handle *fwnode, struct fwnode_handle *prev) { |