target/linux/bcm27xx/patches-5.15/950-0179-drm-v3d-Plug-dma_fence-leak.patch

   1 From 4799df403a918e84b5e18aae9dfa99acf0786aa8 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.org>
   3 Date: Tue, 12 Nov 2019 16:41:21 +0000
   4 Subject: [PATCH] drm/v3d: Plug dma_fence leak
   5
   6 The irq_fence and done_fence are given a reference that is never
   7 released. The necessary dma_fence_put()s seem to have been
   8 deleted in error in an earlier commit.
   9
  10 Fixes: 0b73676836b2 ("drm/v3d: Clock V3D down when not in use.")
  11
  12 Signed-off-by: Phil Elwell <phil@raspberrypi.org>
  13 ---
  14  drivers/gpu/drm/v3d/v3d_gem.c | 3 +++
  15  1 file changed, 3 insertions(+)
  16
  17 --- a/drivers/gpu/drm/v3d/v3d_gem.c
  18 +++ b/drivers/gpu/drm/v3d/v3d_gem.c
  19 @@ -414,6 +414,9 @@ v3d_job_free(struct kref *ref)
  20         }
  21         xa_destroy(&job->deps);
  22
  23 +       dma_fence_put(job->irq_fence);
  24 +       dma_fence_put(job->done_fence);
  25 +
  26         v3d_clock_up_put(v3d);
  27
  28         if (job->perfmon)