1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/gpio/gpiolib-acpi.c b/drivers/gpio/gpiolib-acpi.c
index 4d2113530735..eb4528c87c0b 100644
--- a/drivers/gpio/gpiolib-acpi.c
+++ b/drivers/gpio/gpiolib-acpi.c
@@ -203,7 +203,7 @@ static acpi_status acpi_gpiochip_request_interrupt(struct acpi_resource *ares,
 
         if (pin <= 255) {
                 char ev_name[5];
-                sprintf(ev_name, "_%c%02X",
+                sprintf(ev_name, "_%c%02hhX",
                         agpio->triggering == ACPI_EDGE_SENSITIVE ? 'E' : 'L',
                         pin);
                 if (ACPI_SUCCESS(acpi_get_handle(handle, ev_name, &evt_handle)))