[PATCH] ACPI: APEI: Fix num_ghes to unsigned int

From: Ashish Kalra
Date: Tue Oct 04 2022 - 19:06:25 EST


From: Ashish Kalra <ashish.kalra@xxxxxxx>

Change num_ghes from int to unsigned int, preventing an overflow
and causing subsequent vmalloc to fail.

Signed-off-by: Ashish Kalra <ashish.kalra@xxxxxxx>
---
drivers/acpi/apei/ghes.c | 2 +-
include/acpi/ghes.h | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/apei/ghes.c b/drivers/acpi/apei/ghes.c
index d91ad378c00d..6d7c202142a6 100644
--- a/drivers/acpi/apei/ghes.c
+++ b/drivers/acpi/apei/ghes.c
@@ -163,7 +163,7 @@ static void ghes_unmap(void __iomem *vaddr, enum fixed_addresses fixmap_idx)
clear_fixmap(fixmap_idx);
}

-int ghes_estatus_pool_init(int num_ghes)
+int ghes_estatus_pool_init(unsigned int num_ghes)
{
unsigned long addr, len;
int rc;
diff --git a/include/acpi/ghes.h b/include/acpi/ghes.h
index 34fb3431a8f3..292a5c40bd0c 100644
--- a/include/acpi/ghes.h
+++ b/include/acpi/ghes.h
@@ -71,7 +71,7 @@ int ghes_register_vendor_record_notifier(struct notifier_block *nb);
void ghes_unregister_vendor_record_notifier(struct notifier_block *nb);
#endif

-int ghes_estatus_pool_init(int num_ghes);
+int ghes_estatus_pool_init(unsigned int num_ghes);

/* From drivers/edac/ghes_edac.c */

--
2.25.1