From e47cb828eb3fca3e8999a0b9aa053dda18552071 Mon Sep 17 00:00:00 2001 From: Wei Lu Date: Wed, 11 Jul 2018 22:32:47 -0400 Subject: [PATCH] drm/amdkfd: Fix error codes in kfd_get_process MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Return ERR_PTR(-EINVAL) if kfd_get_process fails to find the process. This fixes kernel oopses when a child process calls KFD ioctls with a file descriptor inherited from the parent process. Signed-off-by: Wei Lu Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Oded Gabbay --- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 1d80b4f7c681..4694386cc623 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -244,6 +244,8 @@ struct kfd_process *kfd_get_process(const struct task_struct *thread) return ERR_PTR(-EINVAL); process = find_process(thread); + if (!process) + return ERR_PTR(-EINVAL); return process; } -- 2.30.2