github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-05-25 23:52:08 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

drm/amdgpu: check if hubbub is NULL in debugfs/amdgpu_dm_capabilities

Browse Source 
HUBBUB structure is not initialized on DCE hardware, so check if it is NULL
to avoid null dereference while accessing amdgpu_dm_capabilities file in
debugfs.

Signed-off-by: Peter Shkenev <mustela@erminea.space>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
This commit is contained in:
Peter Shkenev 2025-07-17 23:48:17 +03:00 committed by Alex Deucher
parent c90f2e1172
commit b4a69f7f29
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
View File

@ -3988,7 +3988,7 @@ static int capabilities_show(struct seq_file *m, void *unused)
struct hubbub *hubbub = dc->res_pool->hubbub;
if (hubbub->funcs->get_mall_en)
if (hubbub && hubbub->funcs->get_mall_en)
hubbub->funcs->get_mall_en(hubbub, &mall_in_use);
if (dc->cap_funcs.get_subvp_en)