This patch just changes data type of bhrb_users variable from
int to unsigned int because it never contains a negative value.
Reported-by: NDaniel Axtens <dja@axtens.net>
Signed-off-by: NAnshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: NMichael Ellerman <mpe@ellerman.id.au>