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    Subject[PATCH AUTOSEL for 4.15 102/124] drm/amd/powerplay: fix memory leakage when reload (v2)
    Date
    From: Yintian Tao <yttao@amd.com>

    [ Upstream commit a25513e7b9b15c318ec44113682e988829aef746 ]

    add smu_free_memory when smu fini to prevent memory leakage

    v2: squash in typo fix (Yintian) and warning (Harry)

    Signed-off-by: Yintian Tao <yttao@amd.com>
    Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
    ---
    drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c | 6 ++++++
    1 file changed, 6 insertions(+)

    diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
    index 7f5359a97ef2..885d9d802670 100644
    --- a/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
    +++ b/drivers/gpu/drm/amd/powerplay/smumgr/smu7_smumgr.c
    @@ -648,6 +648,12 @@ int smu7_init(struct pp_hwmgr *hwmgr)

    int smu7_smu_fini(struct pp_hwmgr *hwmgr)
    {
    + struct smu7_smumgr *smu_data = (struct smu7_smumgr *)(hwmgr->smu_backend);
    +
    + smu_free_memory(hwmgr->device, (void *) smu_data->header_buffer.handle);
    + if (!cgs_is_virtualization_enabled(hwmgr->device))
    + smu_free_memory(hwmgr->device, (void *) smu_data->smu_buffer.handle);
    +
    kfree(hwmgr->smu_backend);
    hwmgr->smu_backend = NULL;
    cgs_rel_firmware(hwmgr->device, CGS_UCODE_ID_SMU);
    --
    2.14.1
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