[PATCH] ACPI: CPPC: fix bug that causes the value written in cpc register to be wrong.

[Lifeng Zheng]

With these codes, the value written in cpc register will be the result of
the OR operatiion on input value and prev_val. This will causes the value
to be wrong.

Signed-off-by: Lifeng Zheng <zhenglifeng1@xxxxxxxxxx>
---
 drivers/acpi/cppc_acpi.c | 1 -
 1 file changed, 1 deletion(-)

diff --git a/drivers/acpi/cppc_acpi.c b/drivers/acpi/cppc_acpi.c
index 01192fd047a6..f69ef7cc0caf 100644
--- a/drivers/acpi/cppc_acpi.c
+++ b/drivers/acpi/cppc_acpi.c
@@ -1146,7 +1146,6 @@ static int cpc_write(int cpu, struct cpc_register_resource *reg_res, u64 val)
 			return -EFAULT;
 		}
 		val = MASK_VAL_WRITE(reg, prev_val, val);
-		val |= prev_val;
 	}
 
 	switch (size) {
-- 
2.33.0