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

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 <[email protected]>
Reviewed-by: Yongqiang Sun <[email protected]>
Acked-by: Anson Jacob <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>

0 files changed, 0 insertions, 0 deletions