When kcalloc() returns NULL to tsk or thread, no error code of igt_threaded_blt() is returned. To fix this bug, -ENOMEM is returned as error code.

Fixes: 0e99f939f08f ("drm/i915/selftests/blt: add some kthreads into the mix") Reported-by: TOTE Robot oslab@tsinghua.edu.cn Signed-off-by: Jia-Ju Bai baijiaju1990@gmail.com --- drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c index 23b6e11bbc3e..b54ba8a1fcec 100644 --- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c +++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_object_blt.c @@ -471,11 +471,13 @@ static int igt_threaded_blt(struct intel_engine_cs *engine,

tsk = kcalloc(n_cpus, sizeof(struct task_struct *), GFP_KERNEL); if (!tsk) - return 0; + return -ENOMEM;

thread = kcalloc(n_cpus, sizeof(struct igt_thread_arg), GFP_KERNEL); - if (!thread) + if (!thread) { + err = -ENOMEM; goto out_tsk; + }

thread[0].file = mock_file(engine->i915); if (IS_ERR(thread[0].file)) {