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author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-12-27 16:35:44 +0100 |
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committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2021-12-27 16:35:44 +0100 |
commit | 3f0bb496ee41d0eb99d308768c9f8593cbd3eb9f (patch) | |
tree | c56b697a7e818e91974d951872781bfd9b3af5b5 /drivers/acpi/cppc_acpi.c | |
parent | d7fbdc575b33c374ce88ccfe3ab364f7eb240f8a (diff) | |
parent | 9c33eef84e3110963d6f41d87d63bc40d716eb1f (diff) |
Merge branches 'thermal-tools' and 'thermal-int340x'
Merge tmon fix and int340x driver improvement for 5.17-rc1.
* thermal-tools:
thermal: tools: tmon: remove unneeded local variable
* thermal-int340x:
thermal: int340x: Use struct_group() for memcpy() region
Diffstat (limited to 'drivers/acpi/cppc_acpi.c')
-rw-r--r-- | drivers/acpi/cppc_acpi.c | 9 |
1 files changed, 8 insertions, 1 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); |