[PATCH] drm/prime: fix up handle_to_fd ioctl return value
Daniel Vetter
daniel at ffwll.ch
Tue Jul 2 01:13:24 PDT 2013
On Tue, Jul 02, 2013 at 04:55:16PM +0900, YoungJun Cho wrote:
> Dear Daniel,
>
> On Jul 2, 2013 4:19 PM, "Daniel Vetter" <daniel.vetter at ffwll.ch> wrote:
> >
> > In
> >
> > commit da34242e5e0638312130f5bd5d2d277afbc6f806
> > Author: YoungJun Cho <yj44.cho at samsung.com>
> > Date: Wed Jun 26 10:21:42 2013 +0900
> >
> > drm/prime: add return check for dma_buf_fd
> >
> > the failure case handling was fixed up. But in the case when we
> > already had the buffer exported it changed the return value:
> > Previously we've return 0 on success, now we return the fd.
> >
> > This ABI change has been caught by i-g-t/prime_self_import/with_one_bo.
> >
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=66436
> > Cc: YoungJun Cho <yj44.cho at samsung.com>
> > Cc: Seung-Woo Kim <sw0312.kim at samsung.com>
> > Cc: Kyungmin Park <kyungmin.park at samsung.com>
> > Tested-by: lu hua <huax.lu at intel.com>
> > Signed-off-by: Daniel Vetter <daniel.vetter at ffwll.ch>
> > ---
> > drivers/gpu/drm/drm_prime.c | 7 +++++--
> > 1 file changed, 5 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
> > index 52709f2..1e0de41 100644
> > --- a/drivers/gpu/drm/drm_prime.c
> > +++ b/drivers/gpu/drm/drm_prime.c
> > @@ -347,10 +347,13 @@ int drm_gem_prime_handle_to_fd(struct drm_device
> *dev,
> > out_have_obj:
> > get_dma_buf(dmabuf);
> > ret = dma_buf_fd(dmabuf, flags);
> > - if (ret < 0)
> > + if (ret < 0) {
> > dma_buf_put(dmabuf);
> > - else
> > + } else {
> > *prime_fd = ret;
> > + ret = 0;
> > + }
> > +
> > goto out;
> >
> > fail_rm_handle:
> > --
> > 1.7.10.4
> >
> >
>
> Right, that's my mistake.
> I'll pay attention from now on!
>
> Thank you & best regards YJ
Reviewed-by ?
Cheers, Daniel
--
Daniel Vetter
Software Engineer, Intel Corporation
+41 (0) 79 365 57 48 - http://blog.ffwll.ch
More information about the dri-devel
mailing list