From: Dmitry Osipenko <dmitry.osipenko@collabora.com> stable inclusion from stable-v5.10.132 commit 2e760fe05d3ea5b5addb02691ec8a29e601dff56 category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I5YS3T Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=... -------------------------------- commit fb6e0637ab7ebd8e61fe24f4d663c4bae99cfa62 upstream. When panfrost_mmu_map_fault_addr() fails, the BO's mapping should be unreferenced and not the shmem object which backs the mapping. Cc: stable@vger.kernel.org Fixes: bdefca2d8dc0 ("drm/panfrost: Add the panfrost_gem_mapping concept") Reviewed-by: Steven Price <steven.price@arm.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Steven Price <steven.price@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220630200601.1884120-2-dmitr... Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com> Acked-by: Xie XiuQi <xiexiuqi@huawei.com> --- drivers/gpu/drm/panfrost/panfrost_mmu.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/panfrost/panfrost_mmu.c b/drivers/gpu/drm/panfrost/panfrost_mmu.c index 7a854beef257..8f7af65a69e4 100644 --- a/drivers/gpu/drm/panfrost/panfrost_mmu.c +++ b/drivers/gpu/drm/panfrost/panfrost_mmu.c @@ -484,7 +484,7 @@ static int panfrost_mmu_map_fault_addr(struct panfrost_device *pfdev, int as, err_pages: drm_gem_shmem_put_pages(&bo->base); err_bo: - drm_gem_object_put(&bo->base.base); + panfrost_gem_mapping_put(bomapping); return ret; } -- 2.20.1