Commit 015a1605 authored Jun 07, 2024 by Manank Patel Committed by Zhang Zekun Jun 07, 2024

ACPI: PCC: Fix unintentional integer overflow

mainline inclusion
from mainline-v6.1-rc3
commit 8338b74a
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I9VPZ8

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=8338b74a750c534c223e8943cc0ed0e198ece261



--------------------------------------------------

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

Fixes: 91cefefb ("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>
Signed-off-by: Zhang Zekun <zhangzekun11@huawei.com>

parent cd52dcce

drivers/acpi/acpi_pcc.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -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;