diff options
| author | Anup Patel <apatel@ventanamicro.com> | 2025-08-18 20:05:59 +0530 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-09-09 18:58:26 +0200 |
| commit | fce8d4599b8c7013a43311ccc8180d33d426ac18 (patch) | |
| tree | 33bb9087a901c7683aa7148115214901d59f78fc | |
| parent | 514600ed8d85b986acf7f01b9146acb6879c58a9 (diff) | |
ACPI: RISC-V: Fix FFH_CPPC_CSR error handling
commit 5b3706597b90a7b6c9ae148edd07a43531dcd49e upstream.
The cppc_ffh_csr_read() and cppc_ffh_csr_write() returns Linux error
code in "data->ret.error" so cpc_read_ffh() and cpc_write_ffh() must
not use sbi_err_map_linux_errno() for FFH_CPPC_CSR.
Fixes: 30f3ffbee86b ("ACPI: RISC-V: Add CPPC driver")
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Troy Mitchell <troy.mitchell@linux.dev>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Nutty Liu <nutty.liu@hotmail.com>
Reviewed-by: Atish Patra <atishp@rivosinc.com>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250818143600.894385-2-apatel@ventanamicro.com
Signed-off-by: Paul Walmsley <pjw@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| -rw-r--r-- | drivers/acpi/riscv/cppc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/acpi/riscv/cppc.c b/drivers/acpi/riscv/cppc.c index 4cdff387deff..10a2b554b3cc 100644 --- a/drivers/acpi/riscv/cppc.c +++ b/drivers/acpi/riscv/cppc.c @@ -121,7 +121,7 @@ int cpc_read_ffh(int cpu, struct cpc_reg *reg, u64 *val) *val = data.ret.value; - return (data.ret.error) ? sbi_err_map_linux_errno(data.ret.error) : 0; + return data.ret.error; } return -EINVAL; @@ -150,7 +150,7 @@ int cpc_write_ffh(int cpu, struct cpc_reg *reg, u64 val) smp_call_function_single(cpu, cppc_ffh_csr_write, &data, 1); - return (data.ret.error) ? sbi_err_map_linux_errno(data.ret.error) : 0; + return data.ret.error; } return -EINVAL; |