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author | 2024-03-05 17:41:15 -0500 | |
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committer | 2024-03-27 08:49:53 -0400 | |
commit | 72d72e8fddbcd6c98e1b02d32cf6f2b04e10bd1c (patch) | |
tree | 22f4028734357d88e5dcd56139a1f41498080eb8 /drivers/gpu/drm/amd | |
parent | drm/amd/display: Increase Z8 watermark times. (diff) | |
download | linux-72d72e8fddbcd6c98e1b02d32cf6f2b04e10bd1c.tar.gz linux-72d72e8fddbcd6c98e1b02d32cf6f2b04e10bd1c.tar.bz2 linux-72d72e8fddbcd6c98e1b02d32cf6f2b04e10bd1c.zip |
drm/amd/display: Prevent crash when disable stream
[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>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r-- | drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c index 9d5df4c0da59..0ba1feaf96c0 100644 --- a/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/hwss/dce110/dce110_hwseq.c @@ -1185,7 +1185,8 @@ 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, |