Merge branch 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux into drm-next

Misc fixes for 4.15.

* 'drm-next-4.15' of git://people.freedesktop.org/~agd5f/linux:
  drm/amd/pp: fix dpm randomly failed on Vega10
  drm/amdgpu: set f_mapping on exported DMA-bufs
  drm/amdgpu: Properly allocate VM invalidate eng v2
  drm/amd/amdgpu: if visible VRAM allocation fail, fall back to invisible try again
  drm/amd/amdgpu: Fix wave mask in amdgpu_debugfs_wave_read() (v2)
  drm/amdgpu: make AMDGPU_VA_RESERVED_SIZE 64bit
  drm/amdgpu/gfx9: implement wave VGPR reading
  drm/amdgpu: Add common golden settings for GFX9
  drm/amd/powerplay: fix copy-n-paste error on vddci_buf index
  drm/amdgpu: Fix null pointer issue in amdgpu_cs_wait_any_fence
  drm/amdgpu: Remove check which is not valid for certain VBIOS

1 files 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 f7fceb63413c..146e05f21d35 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -1497,8 +1497,11 @@ out:
         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++)