[PATCH 06/36] drm/amdgpu: use the unlocked drm_gem_object_put

[Sam Ravnborg]

On Fri, May 08, 2020 at 10:55:42AM +0100, Emil Velikov wrote:
> On Fri, 8 May 2020 at 09:16, Christian König <christian.koenig at amd.com> wrote:
> >
> > Am 07.05.20 um 20:03 schrieb Sam Ravnborg:
> > > Hi Emil.
> > >
> > > On Thu, May 07, 2020 at 04:07:52PM +0100, Emil Velikov wrote:
> > >> From: Emil Velikov <emil.velikov at collabora.com>
> > >>
> > >> The driver does not hold struct_mutex, thus using the locked version of
> > >> the helper is incorrect.
> > >>
> > >> Cc: Alex Deucher <alexander.deucher at amd.com>
> > >> Cc: Christian König <christian.koenig at amd.com>
> > >> Cc: amd-gfx at lists.freedesktop.org
> > >> Fixes: a39414716ca0 ("drm/amdgpu: add independent DMA-buf import v9"):
> > >> Signed-off-by: Emil Velikov <emil.l.velikov at gmail.com>
> > >> ---
> > >>   drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c | 2 +-
> > >>   1 file changed, 1 insertion(+), 1 deletion(-)
> > >>
> > >> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
> > >> index 43d8ed7dbd00..652c57a3b847 100644
> > >> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
> > >> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c
> > >> @@ -587,7 +587,7 @@ struct drm_gem_object *amdgpu_gem_prime_import(struct drm_device *dev,
> > >>      attach = dma_buf_dynamic_attach(dma_buf, dev->dev,
> > >>                                      &amdgpu_dma_buf_attach_ops, obj);
> > >>      if (IS_ERR(attach)) {
> > >> -            drm_gem_object_put(obj);
> > >> +            drm_gem_object_put_unlocked(obj);
> > >>              return ERR_CAST(attach);
> > >>      }
> > > Likewise previous patch.
> > > Drop this as the patch is correct after the rename a few pathces later.
> >
> > Well this is a bug fix in the error path and should probably be back
> > ported, so having a separate patch is certainly a good idea.
> >
> Precisely the goal here. The fixes tag should allow Greg and team to
> pick/port it where applicable.
I got it now... Thanks for spelling it out for my dense mind.

	Sam