diff options
| author | Dave Airlie <airlied@redhat.com> | 2014-01-16 14:28:22 +1000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-13 13:50:24 -0800 |
| commit | d79d8ea83a4b4746e5b69c71921473127c3443eb (patch) | |
| tree | 5459b3c936ab15e20da823dd4b6ba6f718614209 /drivers | |
| parent | c3269a105bca3da6aee087742f4a348536151505 (diff) | |
drm/mgag200: fix oops in cursor code.
commit 53dac830537b51df555ba5e7ebb236705b7eaa7c upstream.
In some cases we enter the cursor code with file_priv = NULL causing an oops,
we also can try to unpin something that isn't pinned, and this is a good fix for it.
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/mgag200/mgag200_cursor.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/drivers/gpu/drm/mgag200/mgag200_cursor.c b/drivers/gpu/drm/mgag200/mgag200_cursor.c index 801731aeab6..9f9780b7ddf 100644 --- a/drivers/gpu/drm/mgag200/mgag200_cursor.c +++ b/drivers/gpu/drm/mgag200/mgag200_cursor.c @@ -22,8 +22,10 @@ static void mga_hide_cursor(struct mga_device *mdev) { WREG8(MGA_CURPOSXL, 0); WREG8(MGA_CURPOSXH, 0); - mgag200_bo_unpin(mdev->cursor.pixels_1); - mgag200_bo_unpin(mdev->cursor.pixels_2); + if (mdev->cursor.pixels_1->pin_count) + mgag200_bo_unpin(mdev->cursor.pixels_1); + if (mdev->cursor.pixels_2->pin_count) + mgag200_bo_unpin(mdev->cursor.pixels_2); } int mga_crtc_cursor_set(struct drm_crtc *crtc, @@ -32,7 +34,7 @@ int mga_crtc_cursor_set(struct drm_crtc *crtc, uint32_t width, uint32_t height) { - struct drm_device *dev = (struct drm_device *)file_priv->minor->dev; + struct drm_device *dev = crtc->dev; struct mga_device *mdev = (struct mga_device *)dev->dev_private; struct mgag200_bo *pixels_1 = mdev->cursor.pixels_1; struct mgag200_bo *pixels_2 = mdev->cursor.pixels_2; |