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authorWyatt Wood <wyatt.wood@amd.com>2019-07-31 22:52:46 +0300
committerAlex Deucher <alexander.deucher@amd.com>2019-08-23 19:37:47 +0300
commitddef02de0d71d483ad4398393717cc0d53fc990a (patch)
treee1b5bbeec9ef38ad96c8f9e813124336847a0216 /drivers/gpu/drm
parent43d4baab525dc85f93d1e470a1b6e8ea1b0a5fdd (diff)
downloadlinux-ddef02de0d71d483ad4398393717cc0d53fc990a.tar.xz
drm/amd/display: add null checks before logging
Adding NULL checks to various parameters in log_tf, to avoid nullptr errors Signed-off-by: Wyatt Wood <wyatt.wood@amd.com> Reviewed-by: Anthony Koo <Anthony.Koo@amd.com> Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com> Acked-by: Nikola Cornij <Nikola.Cornij@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
index f61f59ac1e00..51c4c62b40e1 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
@@ -1503,9 +1503,12 @@ dcn10_set_output_transfer_func(struct pipe_ctx *pipe_ctx,
} else
dpp->funcs->dpp_program_regamma_pwl(dpp, NULL, OPP_REGAMMA_BYPASS);
- log_tf(stream->ctx,
- stream->out_transfer_func,
- dpp->regamma_params.hw_points_num);
+ if (stream != NULL && stream->ctx != NULL &&
+ stream->out_transfer_func != NULL) {
+ log_tf(stream->ctx,
+ stream->out_transfer_func,
+ dpp->regamma_params.hw_points_num);
+ }
return true;
}