UbiquitousOS
/
OpenCloudOS-Kernel
mirror of https://gitee.com/OpenCloudOS/OpenCloudOS-Kernel.git
11
0
Fork 0
Code Issues Projects Releases Wiki Activity

ACPI: CPPC: Drop redundant local variable from cpc_read() 

The ret_val local variable in cpc_read() is not necessary, so
eliminate it.

No functional impact.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Huang Rui <ray.huang@amd.com>
This commit is contained in:
Rafael J. Wysocki 2022-01-12 19:27:22 +01:00
parent 5f51c7ce1d
commit f684b10751
1 changed files with 3 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/acpi/cppc_acpi.c
View File

@ -915,14 +915,13 @@ int __weak cpc_write_ffh(int cpunum, struct cpc_reg *reg, u64 val)
static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val) static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
{ {
int ret_val = 0;
void __iomem *vaddr = NULL; void __iomem *vaddr = NULL;
int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu); int pcc_ss_id = per_cpu(cpu_pcc_subspace_idx, cpu);
struct cpc_reg *reg = &reg_res->cpc_entry.reg; struct cpc_reg *reg = &reg_res->cpc_entry.reg;
if (reg_res->type == ACPI_TYPE_INTEGER) { if (reg_res->type == ACPI_TYPE_INTEGER) {
*val = reg_res->cpc_entry.int_value; *val = reg_res->cpc_entry.int_value;
return ret_val; return 0;
} }
*val = 0; *val = 0;
@ -968,10 +967,10 @@ static int cpc_read(int cpu, struct cpc_register_resource *reg_res, u64 *val)
default: default:
pr_debug("Error: Cannot read %u bit width from PCC for ss: %d\n", pr_debug("Error: Cannot read %u bit width from PCC for ss: %d\n",
reg->bit_width, pcc_ss_id); reg->bit_width, pcc_ss_id);
ret_val = -EFAULT; return -EFAULT;
} }
return ret_val; return 0;
} }
static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val) static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val)