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authorThomas Hellstrom <thellstrom@vmware.com>2010-11-02 13:21:49 +0000
committerDave Airlie <airlied@redhat.com>2010-11-09 13:39:34 +1000
commit1ef0724dbd9c9e6f421a8987f58b8e034da43ec2 (patch)
tree3d2b02a4e89e17eef46f269b0bbca057e06a8cc8 /drivers/gpu/drm/vmwgfx
parent29e190e049168b01dc5fa26d577ef99cafd753ee (diff)
drm/vmwgfx: Fix oops on failing bo pin
When bo pin failed during modesetting, vmwgfx would try to unref a non-existing buffer object. Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com> Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/vmwgfx')
-rw-r--r--drivers/gpu/drm/vmwgfx/vmwgfx_kms.c5
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 87c6e6156d7d..cceeb42789b6 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -720,6 +720,8 @@ static int vmw_surface_dmabuf_pin(struct vmw_framebuffer *vfb)
&vmw_vram_ne_placement,
false, &vmw_dmabuf_bo_free);
vmw_overlay_resume_all(dev_priv);
+ if (unlikely(ret != 0))
+ vfbs->buffer = NULL;
return ret;
}
@@ -730,6 +732,9 @@ static int vmw_surface_dmabuf_unpin(struct vmw_framebuffer *vfb)
struct vmw_framebuffer_surface *vfbs =
vmw_framebuffer_to_vfbs(&vfb->base);
+ if (unlikely(vfbs->buffer == NULL))
+ return 0;
+
bo = &vfbs->buffer->base;
ttm_bo_unref(&bo);
vfbs->buffer = NULL;