drm/amdkfd: Check debug trap enable before write dbg_ev_file
authorLin.Cao <lincao12@amd.com>
Wed, 24 Apr 2024 03:27:16 +0000 (11:27 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 8 May 2024 19:17:05 +0000 (15:17 -0400)
commit547033b593063eb85bfdf9b25a5f1b8fd1911be2
tree0edb5bd129e61f62168aecc9a90ff09d9ecc96f7
parentbe1684930f5262a622d40ce7a6f1423530d87f89
drm/amdkfd: Check debug trap enable before write dbg_ev_file

In interrupt context, write dbg_ev_file will be run by work queue. It
will cause write dbg_ev_file execution after debug_trap_disable, which
will cause NULL pointer access.
v2: cancel work "debug_event_workarea" before set dbg_ev_file as NULL.

Signed-off-by: Lin.Cao <lincao12@amd.com>
Reviewed-by: Jonathan Kim <jonathan.kim@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdkfd/kfd_debug.c