drm/amd/display: fix type mismatch error for return variable

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It is possible for ret_vsnprintf to be assigned negative value in
error cases. As an unsigned variable, negative values which
are stored in their 2's complement form gets treated as a positive
number. This will led to treating bad cases as good ones.
eg: -1 gets stored as 0xFFFFFFFF on a 32 bit system

Signed-off-by: Dale Zhao <dale.zhao@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Anson Jacob <Anson.Jacob@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Dale Zhao 2021-01-27 20:04:52 +08:00 • committed by Alex Deucher

parent 91a51fbf24

commit e75f563463

1 changed files with 1 additions and 1 deletions

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drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer_debug.c

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