drm/amd/display: Remove redundant non-zero and overflow check

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[Why]
Unsigned int is guaranteed to be >= 0, and read_channel_reply checks for
overflows. read_channel_reply also returns -1 on error, which is what
dc_link_aux_transfer is expected to return on error.

[How]
Remove the if-statement. Return result of read_channel_reply directly.

Signed-off-by: Leo (Sunpeng) Li <sunpeng.li@amd.com>
Reviewed-by: Mikita Lipski <Mikita.Lipski@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Leo (Sunpeng) Li 2018-08-01 10:20:53 -04:00 • committed by Alex Deucher

parent 2f14bc8968

commit 5678094038

1 changed files with 3 additions and 7 deletions

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

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