[PATCH v6 0/3] Fix IS_ERR() vs NULL check for drm

[Gaosheng Cui]

v6:
- Update the first patch, return dev_err_probe(...), Thanks!

v5:
- Update the third patch, change IS_ERR to IS_ERR_OR_NULL.
  Thanks!

v4:
- 1. Update the second patch's commit messages.
  2. Update the first patch, use dev_err_probe() instead of dev_err().

  Thanks!

v3:
- Update the second patch:
  1. change IS_ERR to IS_ERR_OR_NULL
  2. add Dmitry's R-b in this revision:
  link: https://patchwork.freedesktop.org/patch/511035/?series=110745&rev=1

  Thanks!

v2:
- I'm sorry I missed some emails, these patches were submitted last year,
  now let me resend it with the following changes:
  1. remove the patch: "drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in msm_icc_get()"
  2. remove the patch: "drm/vc4: kms: Fix IS_ERR() vs NULL check for vc4_kms"
  3. add "Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>" to the second patch.

  Thanks!

v1:
- This series contains a few fixup patches, to fix IS_ERR() vs NULL check
  for drm, and avoid a potential null-ptr-defer issue, too. Thanks!

Gaosheng Cui (3):
  drm/panel: Fix IS_ERR() vs NULL check in nt35950_probe()
  drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()
  drm/komeda: Fix IS_ERR_OR_NULL() vs NULL check in
    komeda_component_get_avail_scaler()

 drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 2 +-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c                      | 2 +-
 drivers/gpu/drm/panel/panel-novatek-nt35950.c              | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

-- 
2.25.1