From: Manank Patel <pmanank200502@gmail.com>
Date: Mon, 17 Oct 2022 18:43:39 +0000 (+0530)
Subject: ACPI: PCC: Fix unintentional integer overflow
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=8338b74a750c534c223e8943cc0ed0e198ece261;p=linux.git

ACPI: PCC: Fix unintentional integer overflow

Fix an unintentional u32 overflow by changing PCC_CMD_WAIT_RETRIES_NUM
to 500ULL.

Fixes: 91cefefb6991 ("ACPI: PCC: replace wait_for_completion()")
Signed-off-by: Manank Patel <pmanank200502@gmail.com>
Acked-by: Sudeep Holla <sudeep.holla@arm.com>
Acked-by: Huisong Li <lihuisong@huawei.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
---

diff --git a/drivers/acpi/acpi_pcc.c b/drivers/acpi/acpi_pcc.c
index ee4ce5ba1fb24..3e252be047b85 100644
--- a/drivers/acpi/acpi_pcc.c
+++ b/drivers/acpi/acpi_pcc.c
@@ -27,7 +27,7 @@
  * Arbitrary retries in case the remote processor is slow to respond
  * to PCC commands
  */
-#define PCC_CMD_WAIT_RETRIES_NUM	500
+#define PCC_CMD_WAIT_RETRIES_NUM	500ULL
 
 struct pcc_data {
 	struct pcc_mbox_chan *pcc_chan;