On Wed, Mar 18, 2020 at 03:53:50PM +0800, Qiujun Huang wrote: > drm_lease_create takes ownership of leases. And leases will be released > by drm_master_put. > > drm_master_put > ->drm_master_destroy > ->idr_destroy > > So we needn't call idr_destroy again. > > Reported-and-tested-by: syzbot+05835159fe322770f...@syzkaller.appspotmail.com > Signed-off-by: Qiujun Huang <hqjag...@gmail.com>
Thanks for the respin, and I've also seen the syzbot confirmation, so all great. Merged to -fixes with a cc: stable. -Daniel > --- > drivers/gpu/drm/drm_lease.c | 3 ++- > 1 file changed, 2 insertions(+), 1 deletion(-) > > diff --git a/drivers/gpu/drm/drm_lease.c b/drivers/gpu/drm/drm_lease.c > index b481caf..825abe3 100644 > --- a/drivers/gpu/drm/drm_lease.c > +++ b/drivers/gpu/drm/drm_lease.c > @@ -542,10 +542,12 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, > } > > DRM_DEBUG_LEASE("Creating lease\n"); > + /* lessee will take the ownership of leases */ > lessee = drm_lease_create(lessor, &leases); > > if (IS_ERR(lessee)) { > ret = PTR_ERR(lessee); > + idr_destroy(&leases); > goto out_leases; > } > > @@ -580,7 +582,6 @@ int drm_mode_create_lease_ioctl(struct drm_device *dev, > > out_leases: > put_unused_fd(fd); > - idr_destroy(&leases); > > DRM_DEBUG_LEASE("drm_mode_create_lease_ioctl failed: %d\n", ret); > return ret; > -- > 1.8.3.1 > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel