[v4,0/4] Fix mediatek-drm coverity issues

Message

Jason-JH.Lin July 14, 2023, 9:49 a.m. UTC

Add this patch series to fix some mediatek-drm coverity issues.

Change in v4:
1. Fix title and commit message in [PATCH v3 3/4].

Change in v3:
1. swap Fixes and Signed tag.
2. change cast (__u64) to '=' then ' *='.

Change in v2:
1. remove kfree(pkt) in mtk_drm_crtc_create_pkt().
2. change the statement of cnt reach to MAX_CRTC.
3. drop the mtk_gem_obj initialized patch.
4. change casting from unsined long to __u64.
5. add 'int offset' for multiplier calculation.
6. drop the unrelavaent modification in dereference null check patch.

Jason-JH.Lin (4):
  drm/mediatek: Remove freeing not dynamic allocated memory
  drm/mediatek: Add cnt checking for coverity issue
  drm/mediatek: Fix unintentional integer overflow in multiplying
    different types
  drm/mediatek: Fix dereference before null check

 drivers/gpu/drm/mediatek/mtk_drm_crtc.c  |  7 ++----
 drivers/gpu/drm/mediatek/mtk_drm_drv.c   |  5 ++++-
 drivers/gpu/drm/mediatek/mtk_drm_gem.c   |  3 ++-
 drivers/gpu/drm/mediatek/mtk_drm_plane.c | 28 ++++++++++++------------
 4 files changed, 22 insertions(+), 21 deletions(-)