drm/amdkfd: Put ACPI table after using it
authorHanjun Guo <guohanjun@huawei.com>
Fri, 13 Nov 2020 03:11:14 +0000 (11:11 +0800)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Wed, 30 Dec 2020 10:53:10 +0000 (11:53 +0100)
commit91a5950181d1e4d4558311d64f54763679aaaa90
treea4e8ea32e3508104d078e8c964bb16a38ec1d262
parent5c0aa48d046d2150c2510342ed45c8b84254f344
drm/amdkfd: Put ACPI table after using it

[ Upstream commit c4cb773c702be5519442c8375a6476d08fe2cb46 ]

The acpi_get_table() should be coupled with acpi_put_table() if
the mapped table is not used at runtime to release the table
mapping which can prevent the memory leak.

In kfd_create_crat_image_acpi(), crat_table is copied to pcrat_image,
and in kfd_create_vcrat_image_cpu(), the acpi_table is only used to
get the OEM information, so those two table mappings need to be released
after using it.

Fixes: 174de876d6d0 ("drm/amdkfd: Group up CRAT related functions")
Fixes: 520b8fb755cc ("drm/amdkfd: Add topology support for CPUs")
Signed-off-by: Hanjun Guo <guohanjun@huawei.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
drivers/gpu/drm/amd/amdkfd/kfd_crat.c