Am 09.11.2017 um 08:59 schrieb Emily Deng: > The array[first] may be null when the fence has already been signaled. > > BUG: SWDEV-136239 > > Signed-off-by: Emily Deng <Emily.Deng at amd.com> Reviewed-by: Christian König <christian.koenig at amd.com> > --- > drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 7 +++++-- > 1 file changed, 5 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > index 354c874..182df08 100644 > --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c > @@ -1502,8 +1502,11 @@ static int amdgpu_cs_wait_any_fence(struct amdgpu_device *adev, > memset(wait, 0, sizeof(*wait)); > wait->out.status = (r > 0); > wait->out.first_signaled = first; > - /* set return value 0 to indicate success */ > - r = array[first]->error; > + > + if (array[first]) > + r = array[first]->error; > + else > + r = 0; > > err_free_fence_array: > for (i = 0; i < fence_count; i++)
