Re: [PATCH] drm/mst: Fix NULL pointer dereference in drm_dp_add_payload_part2 (again)

2024-04-14 Thread Lin, Wayne
@lists.freedesktop.org Cc: linux-ker...@vger.kernel.org; David Airlie; Daniel Vetter; sta...@vger.kernel.org Subject: Re: [PATCH] drm/mst: Fix NULL pointer dereference in drm_dp_add_payload_part2 (again) As a follow up, I read through the original thread before sending this and my understanding is

Re: [PATCH] drm/mst: Fix NULL pointer dereference in drm_dp_add_payload_part2 (again)

2024-04-13 Thread Jeff Mahoney
As a follow up, I read through the original thread before sending this and my understanding is that this message probably shouldn't be getting printed in the first place. I've turned on KMS, ATOMIC, STATE, and DP debugging to see what shakes out. I have a KVM on my desk that I use to switch b

[PATCH] drm/mst: Fix NULL pointer dereference in drm_dp_add_payload_part2 (again)

2024-04-13 Thread Jeff Mahoney
Commit 54d217406afe (drm: use mgr->dev in drm_dbg_kms in drm_dp_add_payload_part2) appears to have been accidentially reverted as part of commit 5aa1dfcdf0a42 (drm/mst: Refactor the flow for payload allocation/removement). I've been seeing NULL pointer dereferences in drm_dp_add_payload_part2 due