Fix userquota_compare() function

The AVL tree compare function requires that either -1, 0, or 1 be
returned.  However the strcmp() function only guarantees that a
negative, zero, or positive value is returned.  Therefore, the
return value of strcmp() needs to be sanitized with AVL_ISIGN.

This was initially overlooked because the x86_64 implementation
of strcmp() happens to only returns the allowed values.  This
was observed on an aarch64 platform which behaves correctly but
differently as described above.

Reviewed-by: Jinshan Xiong <[email protected]>
Reviewed-by: Richard Laager <[email protected]>
Signed-off-by: Brian Behlendorf <[email protected]>
Closes #5311 
Closes #5313 

0 files changed, 0 insertions, 0 deletions