From 57f06ca4585907aa42a2dcc656d762218940ff85 Mon Sep 17 00:00:00 2001 From: Chunming Zhou Date: Fri, 10 Feb 2017 17:07:05 +0800 Subject: [PATCH 0789/4131] drm/amdgpu: get core->kref in sem_import V2 V2: remove mutex protection for core->kref Change-Id: I39c83946e7bf078b4a527ba26747cc4f400592e0 Signed-off-by: Chunming Zhou Reviewed-by: David Mao --- drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c | 8 +++++--- 1 file changed, 5 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c index 3c4ee76..a30b5cb 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c @@ -225,10 +225,11 @@ static int amdgpu_sem_import(struct amdgpu_fpriv *fpriv, return -EINVAL; } + kref_get(&core->kref); sem = amdgpu_sem_alloc(); if (!sem) { ret = -ENOMEM; - goto err_out; + goto err_sem; } sem->base = core; @@ -246,9 +247,10 @@ static int amdgpu_sem_import(struct amdgpu_fpriv *fpriv, *handle = ret; return 0; - +err_sem: + kref_put(&core->kref, amdgpu_sem_core_free); err_out: - kfree(sem); + amdgpu_sem_put(sem); return ret; } -- 2.7.4