From: Lucas Stach l.stach@pengutronix.de
commit f2faea8b64125852fa9acc6771c07fc0311a039b upstream.
When we forcefully evict a mapping from the the address space and thus the MMU context, the MMU context is leaked, as the mapping no longer points to it, so it doesn't get freed when the GEM object is destroyed. Add the mssing context put to fix the leak.
Cc: stable@vger.kernel.org # 5.4 Signed-off-by: Lucas Stach l.stach@pengutronix.de Tested-by: Michael Walle michael@walle.cc Tested-by: Marek Vasut marex@denx.de Reviewed-by: Christian Gmeiner christian.gmeiner@gmail.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 1 + 1 file changed, 1 insertion(+)
--- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -197,6 +197,7 @@ static int etnaviv_iommu_find_iova(struc */ list_for_each_entry_safe(m, n, &list, scan_node) { etnaviv_iommu_remove_mapping(context, m); + etnaviv_iommu_context_put(m->context); m->context = NULL; list_del_init(&m->mmu_node); list_del_init(&m->scan_node);