Archit Taneja 9dcfbc182f drm/msm: Fix NULL deref in adreno_load_gpu
The msm/kms driver should work even if there is no GPU device specified
in DT. Currently, we get a NULL dereference crash in adreno_load_gpu
since the driver assumes that priv->gpu_pdev is non-NULL.

Perform an additional check on priv->gpu_pdev before trying to retrieve
the msm_gpu pointer from it.

v2: Incorporate Jordan's comments:
- Simplify the check to share the same error message.
- Use dev_err_once() to avoid an error message every time we open the
  drm device fd.

Fixes: eec874ce5ff1 (drm/msm/adreno: load gpu at probe/bind time)

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Acked-by: Jordan Crouse <jcrouse@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2018-01-03 09:36:17 -05:00
..
2017-11-02 12:40:41 +10:00
2017-10-28 11:01:33 -04:00
2017-11-15 20:42:10 -08:00
2017-04-08 06:59:31 -04:00
2017-11-02 12:40:41 +10:00