mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-09-27 21:03:32 +00:00
Code Issues Releases Wiki Activity

drm/amd/display: Prevent crash when disable stream

Browse source 
[ Upstream commit 72d72e8fdd ]

[Why]
Disabling stream encoder invokes a function that no longer exists.

[How]
Check if the function declaration is NULL in disable stream encoder.

Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Chris Park <chris.park@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Chris Park 2024-03-05 17:41:15 -05:00 committed by Greg Kroah-Hartman
parent 8dc9a27589
commit 4356a2c3f2
1 changed files with 2 additions and 1 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

3
drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c
View file

@ -1181,7 +1181,8 @@ void dce110_disable_stream(struct pipe_ctx *pipe_ctx)
if (dccg) {
dccg->funcs->disable_symclk32_se(dccg, dp_hpo_inst);
dccg->funcs->set_dpstreamclk(dccg, REFCLK, tg->inst, dp_hpo_inst);
dccg->funcs->set_dtbclk_dto(dccg, &dto_params);
if (dccg && dccg->funcs->set_dtbclk_dto)
dccg->funcs->set_dtbclk_dto(dccg, &dto_params);
}
} else if (dccg && dccg->funcs->disable_symclk_se) {
dccg->funcs->disable_symclk_se(dccg, stream_enc->stream_enc_inst,