1 /* 2 * The standard tile calling convention returns the value (or negative 3 * errno) in r0, and zero (or positive errno) in r1. 4 * Until at least kernel 3.8, however, the r1 value is not reflected 5 * in ptregs at this point, so we use r0 here. 6 */ 7 if (check_errno && is_negated_errno(tile_regs.regs[0])) { 8 tcp->u_rval = -1; 9 tcp->u_error = -tile_regs.regs[0]; 10 } else { 11 tcp->u_rval = tile_regs.regs[0]; 12 } 13