From 15b674b1e581b44ccefd542eb909cdff054e26f4 Mon Sep 17 00:00:00 2001 From: Lucas Stach Date: Fri, 20 Aug 2021 22:18:30 +0200 Subject: [PATCH] drm/etnaviv: add missing MMU context put when reaping MMU mapping 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 Tested-by: Michael Walle Tested-by: Marek Vasut Reviewed-by: Christian Gmeiner Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/etnaviv/etnaviv_mmu.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c index 3607d348c298..707f5c1a5874 100644 --- a/drivers/gpu/drm/etnaviv/etnaviv_mmu.c +++ b/drivers/gpu/drm/etnaviv/etnaviv_mmu.c @@ -204,6 +204,7 @@ static int etnaviv_iommu_find_iova(struct etnaviv_iommu_context *context, */ 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);