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Subject[PATCH] ACPI: acpi_pcc.c: Fix unintentional integer overflow
Date
From: Manank Patel <pmanank200502@gmail.com>

Fixed unintentional u32 overflow by casting it to u64 before multiplication.

Signed-off-by: Manank Patel <pmanank200502@gmail.com>
---
drivers/acpi/acpi_pcc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/acpi/acpi_pcc.c b/drivers/acpi/acpi_pcc.c
index ee4ce5ba1fb2..b929d2e5c622 100644
--- a/drivers/acpi/acpi_pcc.c
+++ b/drivers/acpi/acpi_pcc.c
@@ -112,7 +112,7 @@ acpi_pcc_address_space_handler(u32 function, acpi_physical_address addr,
* processor could be much slower to reply. So add an arbitrary
* amount of wait on top of Nominal.
*/
- usecs_lat = PCC_CMD_WAIT_RETRIES_NUM * data->pcc_chan->latency;
+ usecs_lat = PCC_CMD_WAIT_RETRIES_NUM * ((u64) data->pcc_chan->latency);
ret = wait_for_completion_timeout(&data->done,
usecs_to_jiffies(usecs_lat));
if (ret == 0) {
--
2.38.0
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