From: Rafael Mendonca rafaelmendsr@gmail.com
[ Upstream commit e67e070632a665c932d534b8b800477bb3111449 ]
The ACPI _RST method has no return value, there's no need to pass a return buffer to acpi_evaluate_object().
Fixes: d30daa33ec1d ("vfio: platform: call _RST method when using ACPI") Signed-off-by: Rafael Mendonca rafaelmendsr@gmail.com Reviewed-by: Eric Auger eric.auger@redhat.com Link: https://lore.kernel.org/r/20221018152825.891032-1-rafaelmendsr@gmail.com Signed-off-by: Alex Williamson alex.williamson@redhat.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/vfio/platform/vfio_platform_common.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/vfio/platform/vfio_platform_common.c b/drivers/vfio/platform/vfio_platform_common.c index f42acc830c24..66931f6b14e6 100644 --- a/drivers/vfio/platform/vfio_platform_common.c +++ b/drivers/vfio/platform/vfio_platform_common.c @@ -77,12 +77,11 @@ static int vfio_platform_acpi_call_reset(struct vfio_platform_device *vdev, const char **extra_dbg) { #ifdef CONFIG_ACPI - struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL }; struct device *dev = vdev->device; acpi_handle handle = ACPI_HANDLE(dev); acpi_status acpi_ret;
- acpi_ret = acpi_evaluate_object(handle, "_RST", NULL, &buffer); + acpi_ret = acpi_evaluate_object(handle, "_RST", NULL, NULL); if (ACPI_FAILURE(acpi_ret)) { if (extra_dbg) *extra_dbg = acpi_format_exception(acpi_ret);