drm/amd/display: Check null pointers before multiple uses

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[WHAT & HOW]
Poniters, such as stream_enc and dc->bw_vbios, are null checked previously
in the same function, so Coverity warns "implies that stream_enc and
dc->bw_vbios might be null". They are used multiple times in the
subsequent code and need to be checked.

This fixes 10 FORWARD_NULL issues reported by Coverity.

Reviewed-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Signed-off-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Hung 2024-06-25 10:37:35 -06:00 • committed by Alex Deucher

parent be1fb44389

commit fdd5ecbbff

7 changed files with 76 additions and 56 deletions

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96

drivers/gpu/drm/amd/display/dc/core/dc_hw_sequencer.c

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8

drivers/gpu/drm/amd/display/dc/hwss/dcn20/dcn20_hwseq.c

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5

drivers/gpu/drm/amd/display/dc/link/accessories/link_dp_cts.c

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5

drivers/gpu/drm/amd/display/dc/link/hwss/link_hwss_dio.c

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5

drivers/gpu/drm/amd/display/dc/resource/dce112/dce112_resource.c

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3

drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c

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10

drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource_helpers.c

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